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This article is stunning.
Absolutely amazing in what it reveals.
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One of the best biology article ...
Absolute proof that nothing in science is static ...
and fundamental discoveries are right there to be made.
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This article is stunning.
Absolutely amazing in what it reveals.
❖
One of the best biology article ...
Absolute proof that nothing in science is static ...
and fundamental discoveries are right there to be made.
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MELANIN
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MELANIN
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Melanin is a natural pigment that gives color to skin, hair, and eyes in humans and animals. It's produced by specialized cells called melanocytes and plays a crucial role in protecting the body from harmful UV radiation.
Here's a more detailed explanation:
Here's a more detailed explanation:
- Where it's found:
Melanin is produced in melanocytes, which are found in the skin, hair follicles, and eyes.
- Factors influencing melanin production:
The amount and type of melanin produced are primarily determined by genetics, but can also be influenced by sun exposure, hormones, and age, according to Healthline.
- Health conditions:
Melanin is also involved in various health conditions, including melasma (dark patches on the skin) and hearing loss, according to the Cleveland Clinic. - What it does:
Melanin absorbs UV radiation, acting as a natural sunscreen and protecting skin cells from damage. It also contributes to the overall color of skin, hair, and eyes. - Types of melanin:
There are two main types of melanin: eumelanin, which is responsible for darker colors (brown and black), and pheomelanin, which is responsible for lighter colors (red and yellow).
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Albatross
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Masters of the sky — up to 10,000 miles per trip,
weeks without landing, sleeping while gliding.
Powered by wind, they roam the seas for weeks without landing ...
Albatross
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Masters of the sky — up to 10,000 miles per trip,
weeks without landing, sleeping while gliding.
Powered by wind, they roam the seas for weeks without landing ...
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Birds' solar-powered eyes:
Birds possess the pecten oculi, a peculiar comb-like structure in their vitreous (the gel of the eye), which is darkly pigmented with MELANIN.
Migratory birds have larger pectens, consistent with a greater need for such support.
While not yet conclusively proven, one can imagine the pecten as a kind of biological solar panel in the eye, using incoming light to generate ATP or other metabolites for the retina.
Birds possess the pecten oculi, a peculiar comb-like structure in their vitreous (the gel of the eye), which is darkly pigmented with MELANIN.
Migratory birds have larger pectens, consistent with a greater need for such support.
While not yet conclusively proven, one can imagine the pecten as a kind of biological solar panel in the eye, using incoming light to generate ATP or other metabolites for the retina.
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The Albatross, a true master of the skies, is renowned for its incredible flight capabilities and endurance.
Here are some key facts about their aerial prowess:
These remarkable adaptations have allowed albatrosses to dominate the open ocean environment, spending the majority of their lives at sea.
Here are some key facts about their aerial prowess:
- Longest Wingspan: The wandering albatross, in particular, boasts the largest wingspan of any living bird, reaching up to 12 feet, allowing them to soar for long distances without flapping their wings.
- Dynamic Soaring: They are masters of a technique called "dynamic soaring", using wind currents and gradients to gain airspeed and height while minimizing energy expenditure. This allows them to fly for long periods without needing to rest on land.
- Long Flights: Albatrosses are known for journeys covering thousands of miles, including circumnavigating the globe in 46 days.
- Sleeping on the Wing: Albatrosses can sleep in short micro-bursts while flying, locking their wings and utilizing the wind, meaning they can spend years without having to go to dry land.
These remarkable adaptations have allowed albatrosses to dominate the open ocean environment, spending the majority of their lives at sea.
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The Painted Turtle's Survival Trick
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The Painted Turtle's Survival Trick
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The common painted turtle (Chrysemys picta) can survive underwater, without oxygen, for months during winter hibernation – something no mammal can do for more than a few minutes.
Part of the turtle's strategy is slowing its metabolism to a crawl. But even at 0.1% metabolism, cells need some energy.
Solís-Herrera and others noted that the turtle's shell (and skin) contains melanin, and hypothesized that the shell acts like an antenna capturing whatever faint light might penetrate the mud and ice⁵.
They suggest this melanin-derived energy
could help the turtle's cells stay alive in anoxic conditions. In support, they point out that other reptiles without shells (hence with less melanin) are far less anoxia-tolerant.
If MELANIN in the shell continuously produces a trickle of energy (by splitting water and releasing hydrogen to fuel cells), it could explain how the turtle's ATP levels remain surprisingly stable during months of no breathing.
Part of the turtle's strategy is slowing its metabolism to a crawl. But even at 0.1% metabolism, cells need some energy.
Solís-Herrera and others noted that the turtle's shell (and skin) contains melanin, and hypothesized that the shell acts like an antenna capturing whatever faint light might penetrate the mud and ice⁵.
They suggest this melanin-derived energy
could help the turtle's cells stay alive in anoxic conditions. In support, they point out that other reptiles without shells (hence with less melanin) are far less anoxia-tolerant.
If MELANIN in the shell continuously produces a trickle of energy (by splitting water and releasing hydrogen to fuel cells), it could explain how the turtle's ATP levels remain surprisingly stable during months of no breathing.
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The Ultimate Human Superpower
You Never Knew You Had: Melanin --
The Hidden Solar Panel in Human Biology
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Beyond Skin Deep:
Melanin as a Biophotonic Engine
You Never Knew You Had: Melanin --
The Hidden Solar Panel in Human Biology
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Beyond Skin Deep:
Melanin as a Biophotonic Engine
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By Sayer Ji's
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By Sayer Ji's
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For over three decades, I have been deeply immersed in reflecting on the role of melanin in human physiology and our origin story, engaging in ongoing dialogue with scientific colleagues, mentors, and skeptics alike.
This fascination with our body's hidden regenerative capacities ultimately led me to write my book REGENERATE: Unlocking Your Body's Radical Resilience Through the New Biology, where I first explored how melanin might play a far more profound role in human health than conventionally understood.
This piece represents a synthesis of some of the most exciting discoveries and conceptual shifts emerging from those conversations and investigations—and totally new ones that surprised even me as far as their far-reaching implications. It is also the first in a series of essays I'll be publishing on the New Biophysics of Light and Humanity’s True Origins. I am excited to finally share this summary.
This fascination with our body's hidden regenerative capacities ultimately led me to write my book REGENERATE: Unlocking Your Body's Radical Resilience Through the New Biology, where I first explored how melanin might play a far more profound role in human health than conventionally understood.
This piece represents a synthesis of some of the most exciting discoveries and conceptual shifts emerging from those conversations and investigations—and totally new ones that surprised even me as far as their far-reaching implications. It is also the first in a series of essays I'll be publishing on the New Biophysics of Light and Humanity’s True Origins. I am excited to finally share this summary.
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Light in the Dark
On the ruined walls of Chernobyl's reactor, something strange was found growing. A decade after the meltdown, scientists noticed a black fungus thriving in the radiation-soaked darkness. It wasn't feeding on rubble or radioactive minerals, but seemingly on the radiation itself.
This melanized fungus (Cryptococcus neoformans) grew faster under gamma rays – a phenomenon dubbed "radiosynthesis," as if it were performing a kind of fungal photosynthesis with ionizing radiation. The key was melanin, the very same pigment that darkens human skin. Melanin appeared to be harvesting energy from deadly rays and turning it into life.
Such a claim sounds like science fiction: a pigment that eats radiation. Yet this discovery was among the early hints (the first being the discovery of melanized radiation-eating bacteria in 1956), that melanin might be far more than a biological coloring agent. It set the stage for a radical rethinking of what this ubiquitous pigment does – not just in fungi, but in us. That black fungus at Chernobyl is a vivid, almost cosmic image. It calls to mind an ancient intuition: that life, even in darkness, somehow seeks the light.
On the ruined walls of Chernobyl's reactor, something strange was found growing. A decade after the meltdown, scientists noticed a black fungus thriving in the radiation-soaked darkness. It wasn't feeding on rubble or radioactive minerals, but seemingly on the radiation itself.
This melanized fungus (Cryptococcus neoformans) grew faster under gamma rays – a phenomenon dubbed "radiosynthesis," as if it were performing a kind of fungal photosynthesis with ionizing radiation. The key was melanin, the very same pigment that darkens human skin. Melanin appeared to be harvesting energy from deadly rays and turning it into life.
Such a claim sounds like science fiction: a pigment that eats radiation. Yet this discovery was among the early hints (the first being the discovery of melanized radiation-eating bacteria in 1956), that melanin might be far more than a biological coloring agent. It set the stage for a radical rethinking of what this ubiquitous pigment does – not just in fungi, but in us. That black fungus at Chernobyl is a vivid, almost cosmic image. It calls to mind an ancient intuition: that life, even in darkness, somehow seeks the light.
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As bizarre as "radiation-eating" fungi are, they form part of a broader story unfolding over the past ten or so years – a story of scientists rediscovering melanin as a bioenergetic engine. It's a tale of bold ideas and personal obsessions, of skepticism slowly yielding to curiosity, and of science converging with themes that feel almost philosophical.
This journey from vision to validation has challenged one of biology's core assumptions: that animals (ourselves included) cannot directly harness the energy of light for metabolism. What if that assumption was only mostly true? What if, hidden in plain sight (or rather in darkness), there was a mechanism by which our bodies capture light and turn it into useful energy?
The prospect is both profound and strangely poetic – that within our cells, a little bit of "sunlight alchemy" might be happening, quietly fueling our lives. To appreciate how revolutionary this idea is, we must first understand how melanin was traditionally viewed, and what curiosities hinted at its secret power.
The Mystery of Melanin
Melanin is familiar to anyone who's seen their skin tan in summer or admired the inky eye of a bird. Biologists have long categorized melanin as a pigment – essentially a biological color whose main job is to absorb light. In humans and many animals, melanin in the skin, hair, and eyes protects against the sun's ultraviolet (UV) rays, preventing DNA damage.
As early as 1820, scientists had concluded that melanin was simply a "sunscreen" in our bodies. For two centuries, this idea stuck: melanin as nature's UV filter, nothing more.
On the surface, it made perfect sense. Dark skin evolved in high-UV environments to guard against sunburn and skin cancer; the melanin in our retina shields sensitive photoreceptors from excess light; melanin in fur or feathers provides camouflage and absorbs warmth. Melanin's role seemed straightforward – a protective dye in the great canvas of biology.
Yet even as textbooks dutifully repeated melanin's sunscreen status, scientists kept stumbling on puzzles that didn't fit the simple story. For one, melanin pops up in places where sunlight scarcely shines. Consider the human brain: certain neurons in the deep brain (the substantia nigra and locus coeruleus) are loaded with neuromelanin, giving these regions a dark hue.
Why would brain cells – tucked inside the skull – bother to produce a UV-blocking pigment? The inner ear is another enigma: the cochlea has melanocytes (pigment cells), and their dysfunction can cause hearing loss. Again, no sunshine reaches there. Even stranger, melanin is found in the heart valves of some animals and the lungs of certain seabirds. These "internal melanized sites" not obviously subject to light have puzzled researchers for years. Could melanin be doing something else there?
This journey from vision to validation has challenged one of biology's core assumptions: that animals (ourselves included) cannot directly harness the energy of light for metabolism. What if that assumption was only mostly true? What if, hidden in plain sight (or rather in darkness), there was a mechanism by which our bodies capture light and turn it into useful energy?
The prospect is both profound and strangely poetic – that within our cells, a little bit of "sunlight alchemy" might be happening, quietly fueling our lives. To appreciate how revolutionary this idea is, we must first understand how melanin was traditionally viewed, and what curiosities hinted at its secret power.
The Mystery of Melanin
Melanin is familiar to anyone who's seen their skin tan in summer or admired the inky eye of a bird. Biologists have long categorized melanin as a pigment – essentially a biological color whose main job is to absorb light. In humans and many animals, melanin in the skin, hair, and eyes protects against the sun's ultraviolet (UV) rays, preventing DNA damage.
As early as 1820, scientists had concluded that melanin was simply a "sunscreen" in our bodies. For two centuries, this idea stuck: melanin as nature's UV filter, nothing more.
On the surface, it made perfect sense. Dark skin evolved in high-UV environments to guard against sunburn and skin cancer; the melanin in our retina shields sensitive photoreceptors from excess light; melanin in fur or feathers provides camouflage and absorbs warmth. Melanin's role seemed straightforward – a protective dye in the great canvas of biology.
Yet even as textbooks dutifully repeated melanin's sunscreen status, scientists kept stumbling on puzzles that didn't fit the simple story. For one, melanin pops up in places where sunlight scarcely shines. Consider the human brain: certain neurons in the deep brain (the substantia nigra and locus coeruleus) are loaded with neuromelanin, giving these regions a dark hue.
Why would brain cells – tucked inside the skull – bother to produce a UV-blocking pigment? The inner ear is another enigma: the cochlea has melanocytes (pigment cells), and their dysfunction can cause hearing loss. Again, no sunshine reaches there. Even stranger, melanin is found in the heart valves of some animals and the lungs of certain seabirds. These "internal melanized sites" not obviously subject to light have puzzled researchers for years. Could melanin be doing something else there?
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Laboratory observations added to the mystery. In one experiment, skin cells rich in melanin were found to contain far fewer mitochondria – the tiny organelles that generate ATP energy – than their non-pigmented counterparts, yet they grew and developed just as well.
In these heavily melanotic cells, mitochondrial number dropped a whopping 83%, and respiration (the usual oxygen-burning energy process) was 30% lower, without impairing cell growth. It was as if the melanin was somehow compensating for the lost mitochondria.
Clinicians also noted paradoxes: melanin in the skin reduces UV DNA damage (protective), but an abundance of melanin can correlate with melanoma (cancer) risk; neuromelanin in the brain might be protective in some ways but is lost in Parkinson's disease, possibly contributing to degeneration. Melanin, the pigment, was behaving less like a static shield and more like a dynamic player – one with a dual nature that scientists didn't yet fully grasp.
Such anomalies prompted a few intrepid thinkers to ask uncomfortable questions. Was it possible that melanin had a metabolic function – that it could, under the right conditions, act as an energy source or catalyst for life's processes? This notion cuts against the grain of classic biology.
After all, one of the defining traits of animals is that, unlike plants, we must consume external food for energy; we don't just sit in the sun and grow (at least, that's what we were taught). "Animal inability to utilize light energy directly has been traditionally assumed," wrote one researcher in 2008. It was practically dogma that only photosynthetic organisms (plants, algae, some bacteria) could turn light into biochemical energy.
And yet, those recurring hints – pigments in dark places, cells managing with fewer mitochondria – suggested a provocative alternative: maybe evolution didn't completely forsake the idea of animal cells harnessing light. Maybe it just hid it in a different form.
In these heavily melanotic cells, mitochondrial number dropped a whopping 83%, and respiration (the usual oxygen-burning energy process) was 30% lower, without impairing cell growth. It was as if the melanin was somehow compensating for the lost mitochondria.
Clinicians also noted paradoxes: melanin in the skin reduces UV DNA damage (protective), but an abundance of melanin can correlate with melanoma (cancer) risk; neuromelanin in the brain might be protective in some ways but is lost in Parkinson's disease, possibly contributing to degeneration. Melanin, the pigment, was behaving less like a static shield and more like a dynamic player – one with a dual nature that scientists didn't yet fully grasp.
Such anomalies prompted a few intrepid thinkers to ask uncomfortable questions. Was it possible that melanin had a metabolic function – that it could, under the right conditions, act as an energy source or catalyst for life's processes? This notion cuts against the grain of classic biology.
After all, one of the defining traits of animals is that, unlike plants, we must consume external food for energy; we don't just sit in the sun and grow (at least, that's what we were taught). "Animal inability to utilize light energy directly has been traditionally assumed," wrote one researcher in 2008. It was practically dogma that only photosynthetic organisms (plants, algae, some bacteria) could turn light into biochemical energy.
And yet, those recurring hints – pigments in dark places, cells managing with fewer mitochondria – suggested a provocative alternative: maybe evolution didn't completely forsake the idea of animal cells harnessing light. Maybe it just hid it in a different form.
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Visionaries and a Radical Hypothesis
In the mid-2000s, a few scientists began to voice the idea that melanin might be an "unrecognized bioenergetic molecule." They were, in effect, proposing a form of animal photosynthesis, with melanin playing the role analogous to chlorophyll. One of the early proponents was Geoffrey Goodman, who published a speculative paper in 2008 titled "Melanin directly converts light for vertebrate metabolic use".
It appeared in the journal Medical Hypotheses – a venue known for outside-the-box ideas – and it laid out Goodman's case that melanin could capture electromagnetic radiation and make it biologically useful¹.
Goodman pointed to that avian puzzle called the pecten oculi: a comb-like, pigmented organ in bird eyes.
The pecten is rich in melanin and blood vessels and is much enlarged in birds that fly long distances. Its true function was unknown, but Goodman hypothesized that the pecten might "help cope with energy and nutrient needs under extreme conditions, by a marginal but critical, melanin-initiated conversion of light to metabolic energy, coupled to local metabolite recycling".
In plain language, he was saying the bird's eye might house a tiny solar panel (melanin-rich pecten) providing an extra trickle of fuel to the retina or brain during the marathon of migration.
In the mid-2000s, a few scientists began to voice the idea that melanin might be an "unrecognized bioenergetic molecule." They were, in effect, proposing a form of animal photosynthesis, with melanin playing the role analogous to chlorophyll. One of the early proponents was Geoffrey Goodman, who published a speculative paper in 2008 titled "Melanin directly converts light for vertebrate metabolic use".
It appeared in the journal Medical Hypotheses – a venue known for outside-the-box ideas – and it laid out Goodman's case that melanin could capture electromagnetic radiation and make it biologically useful¹.
Goodman pointed to that avian puzzle called the pecten oculi: a comb-like, pigmented organ in bird eyes.
The pecten is rich in melanin and blood vessels and is much enlarged in birds that fly long distances. Its true function was unknown, but Goodman hypothesized that the pecten might "help cope with energy and nutrient needs under extreme conditions, by a marginal but critical, melanin-initiated conversion of light to metabolic energy, coupled to local metabolite recycling".
In plain language, he was saying the bird's eye might house a tiny solar panel (melanin-rich pecten) providing an extra trickle of fuel to the retina or brain during the marathon of migration.
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This was a bold leap, but it elegantly explained why a high-flying goose or hawk would have a big pigmented eye-organ: fighting gravity, hypoxia, and hunger on a long flight, any extra energy – even a small boost from absorbed light – could be life-saving.
Goodman didn't stop at birds. He drew a parallel to human evolution. Humans are oddly hairless compared to other primates, and we developed very dark skin in equatorial Africa.
Traditional explanations for hairlessness include temperature regulation (sweating better) and reducing parasites, while dark skin protects from UV. But Goodman mused there might be another benefit: with less hair and more melanin in our skin, perhaps early humans could perform a bit of "photomelanometabolism" – using melanin to convert sunlight into metabolic energy.
Even if each square inch of skin produced only a tiny amount of extra energy, the total body surface might yield enough to matter, especially for an energy-hungry organ like the brain. He suggested this could have "enabled a sharply increased development of the energy-hungry cortex" in our ancestors and given a survival edge in famine or endurance situations.
Thanks for reading Sayer Ji's Substack! This post is public so feel free to share it.
Share
It was a fascinating idea: that shedding fur and soaking up the sun might have literally powered our evolving brains. It cast melanin as a driver in human origins, not just a passive trait. Goodman admitted the idea was heuristic – more a thought experiment to stimulate research than a proven fact.
But he ended with a provocative statement that captured the spirit of this emerging paradigm: "there is more in melanin than meets the eye".
Goodman didn't stop at birds. He drew a parallel to human evolution. Humans are oddly hairless compared to other primates, and we developed very dark skin in equatorial Africa.
Traditional explanations for hairlessness include temperature regulation (sweating better) and reducing parasites, while dark skin protects from UV. But Goodman mused there might be another benefit: with less hair and more melanin in our skin, perhaps early humans could perform a bit of "photomelanometabolism" – using melanin to convert sunlight into metabolic energy.
Even if each square inch of skin produced only a tiny amount of extra energy, the total body surface might yield enough to matter, especially for an energy-hungry organ like the brain. He suggested this could have "enabled a sharply increased development of the energy-hungry cortex" in our ancestors and given a survival edge in famine or endurance situations.
Thanks for reading Sayer Ji's Substack! This post is public so feel free to share it.
Share
It was a fascinating idea: that shedding fur and soaking up the sun might have literally powered our evolving brains. It cast melanin as a driver in human origins, not just a passive trait. Goodman admitted the idea was heuristic – more a thought experiment to stimulate research than a proven fact.
But he ended with a provocative statement that captured the spirit of this emerging paradigm: "there is more in melanin than meets the eye".
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| The Origin of Life According to Melonin .pdf |
| Human Photosynthesis .pdf |
Around the same time, another researcher on the other side of the world was independently pursuing the melanin-energy connection, in a far more empirical way.
Dr. Arturo Solís Herrera, a Mexican ophthalmologist and biochemist, stumbled onto melanin's secret while studying diseases of the eye. In the 1990s, Solís-Herrera was investigating the causes of blindness like glaucoma and diabetic retinopathy.
As part of eye exams, he often observed the optic nerve in live patients and noted something intriguing: melanin was everywhere around the optic nerve, in the retinal pigment epithelium and choroid, forming a dark ring around the nerve head. This in itself wasn't news – anatomists knew the back of the eye is pigmented. But what struck Solís-Herrera was a question:
Why would nature put a dense ring of melanin 2.5 centimeters deep inside the head, effectively behind the light-sensitive retina? It's like finding solar panels buried in a cave – seemingly out of place.
Dr. Arturo Solís Herrera, a Mexican ophthalmologist and biochemist, stumbled onto melanin's secret while studying diseases of the eye. In the 1990s, Solís-Herrera was investigating the causes of blindness like glaucoma and diabetic retinopathy.
As part of eye exams, he often observed the optic nerve in live patients and noted something intriguing: melanin was everywhere around the optic nerve, in the retinal pigment epithelium and choroid, forming a dark ring around the nerve head. This in itself wasn't news – anatomists knew the back of the eye is pigmented. But what struck Solís-Herrera was a question:
Why would nature put a dense ring of melanin 2.5 centimeters deep inside the head, effectively behind the light-sensitive retina? It's like finding solar panels buried in a cave – seemingly out of place.
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The conventional answer is that ocular melanin absorbs stray light, improving visual acuity and protecting tissues from light damage. Yet the placement and abundance of this pigment made Solís-Herrera wonder if something else was afoot. He began to hypothesize that melanin in the eye might be there to capture whatever light penetrates the tissues and use it to power local cells.
To test this, Solís-Herrera embarked on what became a 12-year odyssey of research, involving thousands of patient samples and countless experiments. In 2011, he and his colleagues announced a discovery that sounded almost heretical: melanin granules can dissociate water molecules, using light energy to split H₂O into hydrogen and oxygen.
This is essentially the first step of photosynthesis – the same fundamental chemical feat performed by chlorophyll in green plants. Chlorophyll captures photons and uses that energy to crack water, releasing oxygen and storing energy in chemical form (hydrogen/electrons) which later generate sugars.
Solís-Herrera was saying that melanin can do something analogous in our cells: act as a photoreceptor that breaks water into hydrogen (which carries energy) and oxygen. The hydrogen (likely in the form of molecular hydrogen or protons and electrons) could then be used by the cell's metabolic processes, just as plant cells use the outputs of water-splitting to eventually make ATP and sugars.
Skeptics scoffed – after all, if this were true, why hadn't biologists noticed it in the past 100 years? But Solís-Herrera's team had data. They demonstrated melanin's water-splitting in vitro and measured the currents and reaction products. In an article aptly titled "Beyond Mitochondria, What Would Be the Energy Source of the Cell?" (2015), they laid out their findings².
Initially, they too tried to fit this melanin-driven chemistry into known pathways of metabolism, scouring metabolic databases and pathways diagrams. But they found, as an aside, that even core pathways like the Krebs cycle are represented inconsistently in literature and databases – a sign that cellular metabolism is not fully understood.
After years of trying to reconcile melanin's role with textbook biochemistry, they had an epiphany: perhaps melanin's photochemical energy isn't a minor supplement but a major contributor. They concluded that "the chemical energy released through the dissociation of the water molecule by melanin represents over 90% of cell energy requirements".
In other words, they argue the vast majority of our ATP energy might actually come from light and water via melanin, while glucose (from food) is used mainly to build biomass (think of glucose more as "carbon bricks" than "fuel").
This flips the conventional view on its head. Glucose and mitochondria, in their scenario, are not the primary power sources but secondary – even "sacrosanct" roles that needed to be questioned.
By 2012, Solís-Herrera was already calling this concept "Human Photosynthesis." In a book chapter, he and his co-authors introduced melanin as "the animal analogue to chlorophyll", capable of harvesting electromagnetic radiation to dissociate water and release energy³.
The term "human photosynthesis" is provocative, but it captures the essence of the hypothesis: that human cells have a light-driven energy pathway hitherto unknown. This new pathway doesn't produce sugars as plants do; instead, it directly produces ATP and other energy intermediates by coupling melanin's water-splitting to the cellular metabolic network.
The idea remained largely on the fringes for a few years, shared in alternative journals and conferences. It challenged deeply entrenched knowledge. Understandably, most biologists met it with skepticism or indifference – extraordinary claims, after all, require extraordinary evidence.
Yet, as the 2010s progressed, more evidence began to trickle in, not just from Solís-Herrera's lab but from independent studies worldwide.
Gradually, the narrative started to shift from pure hypothesis to something more tangible. It's a case study in how science advances: a wild idea arises, is initially ignored or criticized, but then data accumulates, experiments are reproduced, and slowly a conceptual framework starts to change. Indeed, as one biology textbook reminds us, new discoveries and technologies can "change the conceptual framework accepted by the majority of biologists".
We may now be on the cusp of such a change regarding melanin. The next section examines the key discoveries that have moved melanin's role from vision to validation.
Evidence Emerges: Melanin as a Bioenergetic Engine
Convincing the scientific community that melanin can act like a tiny engine requires solid evidence. Over the past decade, several lines of investigation – from microbiology to human physiology – have produced findings that support the melanin-as-energy concept. Here, we highlight some of the most eye-opening examples:
To test this, Solís-Herrera embarked on what became a 12-year odyssey of research, involving thousands of patient samples and countless experiments. In 2011, he and his colleagues announced a discovery that sounded almost heretical: melanin granules can dissociate water molecules, using light energy to split H₂O into hydrogen and oxygen.
This is essentially the first step of photosynthesis – the same fundamental chemical feat performed by chlorophyll in green plants. Chlorophyll captures photons and uses that energy to crack water, releasing oxygen and storing energy in chemical form (hydrogen/electrons) which later generate sugars.
Solís-Herrera was saying that melanin can do something analogous in our cells: act as a photoreceptor that breaks water into hydrogen (which carries energy) and oxygen. The hydrogen (likely in the form of molecular hydrogen or protons and electrons) could then be used by the cell's metabolic processes, just as plant cells use the outputs of water-splitting to eventually make ATP and sugars.
Skeptics scoffed – after all, if this were true, why hadn't biologists noticed it in the past 100 years? But Solís-Herrera's team had data. They demonstrated melanin's water-splitting in vitro and measured the currents and reaction products. In an article aptly titled "Beyond Mitochondria, What Would Be the Energy Source of the Cell?" (2015), they laid out their findings².
Initially, they too tried to fit this melanin-driven chemistry into known pathways of metabolism, scouring metabolic databases and pathways diagrams. But they found, as an aside, that even core pathways like the Krebs cycle are represented inconsistently in literature and databases – a sign that cellular metabolism is not fully understood.
After years of trying to reconcile melanin's role with textbook biochemistry, they had an epiphany: perhaps melanin's photochemical energy isn't a minor supplement but a major contributor. They concluded that "the chemical energy released through the dissociation of the water molecule by melanin represents over 90% of cell energy requirements".
In other words, they argue the vast majority of our ATP energy might actually come from light and water via melanin, while glucose (from food) is used mainly to build biomass (think of glucose more as "carbon bricks" than "fuel").
This flips the conventional view on its head. Glucose and mitochondria, in their scenario, are not the primary power sources but secondary – even "sacrosanct" roles that needed to be questioned.
By 2012, Solís-Herrera was already calling this concept "Human Photosynthesis." In a book chapter, he and his co-authors introduced melanin as "the animal analogue to chlorophyll", capable of harvesting electromagnetic radiation to dissociate water and release energy³.
The term "human photosynthesis" is provocative, but it captures the essence of the hypothesis: that human cells have a light-driven energy pathway hitherto unknown. This new pathway doesn't produce sugars as plants do; instead, it directly produces ATP and other energy intermediates by coupling melanin's water-splitting to the cellular metabolic network.
The idea remained largely on the fringes for a few years, shared in alternative journals and conferences. It challenged deeply entrenched knowledge. Understandably, most biologists met it with skepticism or indifference – extraordinary claims, after all, require extraordinary evidence.
Yet, as the 2010s progressed, more evidence began to trickle in, not just from Solís-Herrera's lab but from independent studies worldwide.
Gradually, the narrative started to shift from pure hypothesis to something more tangible. It's a case study in how science advances: a wild idea arises, is initially ignored or criticized, but then data accumulates, experiments are reproduced, and slowly a conceptual framework starts to change. Indeed, as one biology textbook reminds us, new discoveries and technologies can "change the conceptual framework accepted by the majority of biologists".
We may now be on the cusp of such a change regarding melanin. The next section examines the key discoveries that have moved melanin's role from vision to validation.
Evidence Emerges: Melanin as a Bioenergetic Engine
Convincing the scientific community that melanin can act like a tiny engine requires solid evidence. Over the past decade, several lines of investigation – from microbiology to human physiology – have produced findings that support the melanin-as-energy concept. Here, we highlight some of the most eye-opening examples:
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Fungi that "eat" radiation: As mentioned earlier, melanized fungi in Chernobyl's ruins were found to grow significantly faster in the presence of high gamma radiation, compared to non-melanized mutants. In one study, C. neoformans exposed to radiation 500 times background levels thrived, while the same fungus lacking melanin did not – implying that melanin enabled the fungus to harness the radiation for metabolic energy.
Dadachova et al. reported that melanin in these fungi changed its electronic structure under radiation, becoming four times more efficient at a certain metabolic redox reaction⁴.
They "cautiously suggested" that melanin may endow organisms with the ability to use electromagnetic radiation as an energy source. In essence, fungal melanin was behaving like a broad-spectrum solar panel, absorbing gamma rays and empowering the fungus. This finding in 2007 was a crucial spark that opened scientists' minds to melanin's hidden talent.
Dadachova et al. reported that melanin in these fungi changed its electronic structure under radiation, becoming four times more efficient at a certain metabolic redox reaction⁴.
They "cautiously suggested" that melanin may endow organisms with the ability to use electromagnetic radiation as an energy source. In essence, fungal melanin was behaving like a broad-spectrum solar panel, absorbing gamma rays and empowering the fungus. This finding in 2007 was a crucial spark that opened scientists' minds to melanin's hidden talent.
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Melanin-powered cells (fewer mitochondria needed): In a laboratory experiment on mouse skin cells, researchers observed that heavily pigmented (melanin-rich) cells could function with dramatically fewer mitochondria than normal. The melanotic cells had 83% fewer mitochondria and ~30% lower respiration rate, yet developed similarly to non-pigmented cells.
This is a baffling result if glucose metabolism and mitochondria are the only sources of energy. The implication is that melanin was somehow compensating, providing energy through another route. It's as though the cells had an alternative power supply that kicked in when melanin was abundant – exactly what the melanin-as-engine theory predicts.
This is a baffling result if glucose metabolism and mitochondria are the only sources of energy. The implication is that melanin was somehow compensating, providing energy through another route. It's as though the cells had an alternative power supply that kicked in when melanin was abundant – exactly what the melanin-as-engine theory predicts.
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The painted turtle's survival trick:
The common painted turtle (Chrysemys picta) can survive underwater, without oxygen, for months during winter hibernation – something no mammal can do for more than a few minutes. Part of the turtle's strategy is slowing its metabolism to a crawl. But even at 0.1% metabolism, cells need some energy. Solís-Herrera and others noted that the turtle's shell (and skin) contains melanin, and hypothesized that the shell acts like an antenna capturing whatever faint light might penetrate the mud and ice⁵.
They suggest this melanin-derived energy could help the turtle's cells stay alive in anoxic conditions. In support, they point out that other reptiles without shells (hence with less melanin) are far less anoxia-tolerant.
If melanin in the shell continuously produces a trickle of energy (by splitting water and releasing hydrogen to fuel cells), it could explain how the turtle's ATP levels remain surprisingly stable during months of no breathing.
This idea is still being explored, but it extends melanin's bioenergetic role to extreme survival.
The common painted turtle (Chrysemys picta) can survive underwater, without oxygen, for months during winter hibernation – something no mammal can do for more than a few minutes. Part of the turtle's strategy is slowing its metabolism to a crawl. But even at 0.1% metabolism, cells need some energy. Solís-Herrera and others noted that the turtle's shell (and skin) contains melanin, and hypothesized that the shell acts like an antenna capturing whatever faint light might penetrate the mud and ice⁵.
They suggest this melanin-derived energy could help the turtle's cells stay alive in anoxic conditions. In support, they point out that other reptiles without shells (hence with less melanin) are far less anoxia-tolerant.
If melanin in the shell continuously produces a trickle of energy (by splitting water and releasing hydrogen to fuel cells), it could explain how the turtle's ATP levels remain surprisingly stable during months of no breathing.
This idea is still being explored, but it extends melanin's bioenergetic role to extreme survival.
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Seeds: Life's Solar-Powered Time Capsules:
Another striking example of melanin's bioenergetic role comes from an unexpected place: seeds. Dr. Solís-Herrera and colleagues observed that nature insistently places melanin in all seeds—from tiny mustard seeds to large avocados. Why would dormant seeds, often buried in soil away from light, need a "sunscreen" pigment? The answer may lie in melanin's ability to generate the spark of life itself.
Seeds exist in a state of minimal vitality, essentially suspended between life and death, sometimes for years or even centuries. Yet when conditions are right--when water and light become available—they spring to life with explosive energy.
Solís-Herrera proposes that melanin acts as the critical energy generator in this process. As water enters the seed and any available light (even the faintest rays filtering through soil) reaches the melanin, it begins splitting water molecules and generating chemical energy. No genes or enzymes need to "turn on" first—rather, it's the melanin-generated energy that provides the initial power to activate all the dormant biochemical machinery.
Once melanin produces sufficient chemical energy to overcome the activation barriers of various enzymatic reactions, the entire cascade of life processes begins, transforming a dormant seed into a vigorous plant.
This elegant mechanism explains how seeds can remain viable for extraordinary periods (some lotus seeds have germinated after 1,000 years) and then burst into life so rapidly. The ubiquitous presence of melanin in seeds across all plant families suggests this isn't a coincidence but a fundamental design principle of life—melanin as the primordial battery that stores and releases the energy needed to jump-start existence itself.
Sayer Ji's Substack is a reader-supported publication. To receive new posts and support my work, consider becoming a free or paid subscriber.
Birds' solar-powered eyes: Birds possess the pecten oculi, a peculiar comb-like structure in their vitreous (the gel of the eye), which is darkly pigmented with melanin.
For over a century, biologists suspected it nourishes the retina (which has no blood vessels), but exactly how was unclear. Goodman's hypothesis gave new insight: the melanin-rich pecten might directly convert light into metabolic energy to support the retina during periods of high demand (like long flights).
Migratory birds have larger pectens, consistent with a greater need for such support. While not yet conclusively proven, one can imagine the pecten as a kind of biological solar panel in the eye, using incoming light to generate ATP or other metabolites for the retina.
This would be another instance of evolution finding a clever solution to an energetic challenge – in this case, how to fuel the retina and brain of a bird that might fly 100 hours without eating.
Another striking example of melanin's bioenergetic role comes from an unexpected place: seeds. Dr. Solís-Herrera and colleagues observed that nature insistently places melanin in all seeds—from tiny mustard seeds to large avocados. Why would dormant seeds, often buried in soil away from light, need a "sunscreen" pigment? The answer may lie in melanin's ability to generate the spark of life itself.
Seeds exist in a state of minimal vitality, essentially suspended between life and death, sometimes for years or even centuries. Yet when conditions are right--when water and light become available—they spring to life with explosive energy.
Solís-Herrera proposes that melanin acts as the critical energy generator in this process. As water enters the seed and any available light (even the faintest rays filtering through soil) reaches the melanin, it begins splitting water molecules and generating chemical energy. No genes or enzymes need to "turn on" first—rather, it's the melanin-generated energy that provides the initial power to activate all the dormant biochemical machinery.
Once melanin produces sufficient chemical energy to overcome the activation barriers of various enzymatic reactions, the entire cascade of life processes begins, transforming a dormant seed into a vigorous plant.
This elegant mechanism explains how seeds can remain viable for extraordinary periods (some lotus seeds have germinated after 1,000 years) and then burst into life so rapidly. The ubiquitous presence of melanin in seeds across all plant families suggests this isn't a coincidence but a fundamental design principle of life—melanin as the primordial battery that stores and releases the energy needed to jump-start existence itself.
Sayer Ji's Substack is a reader-supported publication. To receive new posts and support my work, consider becoming a free or paid subscriber.
Birds' solar-powered eyes: Birds possess the pecten oculi, a peculiar comb-like structure in their vitreous (the gel of the eye), which is darkly pigmented with melanin.
For over a century, biologists suspected it nourishes the retina (which has no blood vessels), but exactly how was unclear. Goodman's hypothesis gave new insight: the melanin-rich pecten might directly convert light into metabolic energy to support the retina during periods of high demand (like long flights).
Migratory birds have larger pectens, consistent with a greater need for such support. While not yet conclusively proven, one can imagine the pecten as a kind of biological solar panel in the eye, using incoming light to generate ATP or other metabolites for the retina.
This would be another instance of evolution finding a clever solution to an energetic challenge – in this case, how to fuel the retina and brain of a bird that might fly 100 hours without eating.
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Albatross: Masters of the sky — up to 10,000 miles per trip, weeks without landing, sleeping while gliding. Powered by wind, they roam the seas for weeks without landing..
Photobiomodulation in humans (hairlessness advantage): Separately from melanin research, the field of photobiomodulation – using red or infrared light to improve tissue healing and function – has exploded in recent years.
Red and near-infrared light (R&NIR, which penetrates skin deeper than visible light) have been found to boost mitochondrial activity and ATP production in cells, reduce inflammation, and activate certain genes related to metabolism. Iain Mathewson, a physician, connected this to human evolution: when early humans lost their body hair, they would have regularly exposed their skin to red-rich sunlight at dawn and dusk, which could directly "charge" their superficial tissues and even brain with extra energy⁶.
He notes that hairlessness would allow daily doses of R&NIR to penetrate the skull a bit (especially at low sun angles), potentially enhancing brain metabolism and blood flow. Moreover, Mathewson points out that melanin strongly absorbs in the visible and UV range, but less so in red/IR; thus some red/IR light can penetrate into tissues even in dark-skinned individuals, stimulating mitochondria. He goes further to suggest "melanin can supply electrons to the respiratory chain resulting in ATP extra-synthesis".
In his model, melanin might work in tandem with light: melanin could absorb higher-energy photons (UV/visible) and feed electrons into the electron transport chain (ETC), while red/IR light stimulates the ETC enzymes like cytochrome c oxidase. Both routes lead to more ATP.
This hypothesis elegantly marries the melanin engine idea with known photobiology and could explain a crucial mystery – the rapid doubling of human brain size ~1.5 to 2 million years ago, which required a significant energy increase.
If natural light exposure gave the first hairless hominins a tiny daily energy bonus (plus improved tissue maintenance via gene activation), those individuals might have had a survival and reproductive edge, driving selection for hairlessness and dark skin. It's a grand evolutionary narrative linking sunshine to intellect.
Photobiomodulation in humans (hairlessness advantage): Separately from melanin research, the field of photobiomodulation – using red or infrared light to improve tissue healing and function – has exploded in recent years.
Red and near-infrared light (R&NIR, which penetrates skin deeper than visible light) have been found to boost mitochondrial activity and ATP production in cells, reduce inflammation, and activate certain genes related to metabolism. Iain Mathewson, a physician, connected this to human evolution: when early humans lost their body hair, they would have regularly exposed their skin to red-rich sunlight at dawn and dusk, which could directly "charge" their superficial tissues and even brain with extra energy⁶.
He notes that hairlessness would allow daily doses of R&NIR to penetrate the skull a bit (especially at low sun angles), potentially enhancing brain metabolism and blood flow. Moreover, Mathewson points out that melanin strongly absorbs in the visible and UV range, but less so in red/IR; thus some red/IR light can penetrate into tissues even in dark-skinned individuals, stimulating mitochondria. He goes further to suggest "melanin can supply electrons to the respiratory chain resulting in ATP extra-synthesis".
In his model, melanin might work in tandem with light: melanin could absorb higher-energy photons (UV/visible) and feed electrons into the electron transport chain (ETC), while red/IR light stimulates the ETC enzymes like cytochrome c oxidase. Both routes lead to more ATP.
This hypothesis elegantly marries the melanin engine idea with known photobiology and could explain a crucial mystery – the rapid doubling of human brain size ~1.5 to 2 million years ago, which required a significant energy increase.
If natural light exposure gave the first hairless hominins a tiny daily energy bonus (plus improved tissue maintenance via gene activation), those individuals might have had a survival and reproductive edge, driving selection for hairlessness and dark skin. It's a grand evolutionary narrative linking sunshine to intellect.
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These examples show how evidence from many angles is coalescing on the idea that melanin can act as a bioenergetic agent. Let's delve a bit deeper into how this might work mechanistically, and what recent experiments have revealed about melanin's capabilities.
Mechanistic Insights: Melanin's "Solar Battery" Chemistry
If melanin truly functions as an energy transducer, what is the mechanism? Research indicates that melanin is a complex polymer with remarkable redox properties.
Melanin's basic building blocks are indolequinones (derivatives of the amino acid tyrosine), which have conjugated double bonds and can exist in multiple oxidation states. This means melanin can accept and donate electrons rather flexibly, acting somewhat like a semiconductor or battery.
In fact, melanin has been called an "electronic-ionic hybrid conductor" – it can conduct electrons like a wire and ions (protons) like a battery electrolyte. When melanin is hydrated, it can incorporate water into its structure ("doping" itself with water) and in doing so, it can generate free radicals, electrons, and protons.
Essentially, melanin plus water forms a kind of redox system that can be influenced by light.
Mechanistic Insights: Melanin's "Solar Battery" Chemistry
If melanin truly functions as an energy transducer, what is the mechanism? Research indicates that melanin is a complex polymer with remarkable redox properties.
Melanin's basic building blocks are indolequinones (derivatives of the amino acid tyrosine), which have conjugated double bonds and can exist in multiple oxidation states. This means melanin can accept and donate electrons rather flexibly, acting somewhat like a semiconductor or battery.
In fact, melanin has been called an "electronic-ionic hybrid conductor" – it can conduct electrons like a wire and ions (protons) like a battery electrolyte. When melanin is hydrated, it can incorporate water into its structure ("doping" itself with water) and in doing so, it can generate free radicals, electrons, and protons.
Essentially, melanin plus water forms a kind of redox system that can be influenced by light.
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Experiments by Dadachova's group provided direct proof of melanin's photo-electronic behavior. They set up a reaction where melanin would mediate electron transfer between an electron donor (NADH, a common cellular fuel) and an acceptor (ferricyanide), and tested this in the dark versus under various light conditions.
Remarkably, they found that irradiating melanin with gamma, UV, visible, or infrared light all boosted the electron transfer rate – and to a similar extent regardless of the photon energy. This is telling: it suggests melanin absorbs across a broad spectrum (it is known to absorb UV through visible and into IR) and converts that absorbed energy into driving chemical reactions. UV light had the strongest effect on melanin's redox activity, dramatically increasing melanin's ability to oxidize NADH, but even infrared, which carries much less energy per photon, significantly enhanced the reaction.
Remarkably, they found that irradiating melanin with gamma, UV, visible, or infrared light all boosted the electron transfer rate – and to a similar extent regardless of the photon energy. This is telling: it suggests melanin absorbs across a broad spectrum (it is known to absorb UV through visible and into IR) and converts that absorbed energy into driving chemical reactions. UV light had the strongest effect on melanin's redox activity, dramatically increasing melanin's ability to oxidize NADH, but even infrared, which carries much less energy per photon, significantly enhanced the reaction.
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This broad-band responsiveness is why melanin is often described as a "universal absorber." It soaks up everything from high-energy UV to low-energy radio waves (to some degree). In melanin-rich skin, for example, very little light of any wavelength penetrates beyond the epidermis because melanin catches it. The classical view was that melanin then harmlessly converts this energy to heat (that's why wearing black clothes makes you feel warm in the sun).
But the new view posits melanin can capture photon energy in a useful chemical form, not just waste heat. One paper noted that melanin behaves as a "broad-band radiation energy harvester, similar to chlorophyll⁷ – a striking comparison that underscores the convergence between plant and animal solutions.
How would melanin integrate with cellular metabolism? A likely scenario is through the mitochondrial electron transport chain (ETC) or other electron acceptors like NAD⁺/NADH. Mathewson's hypothesis, for instance, suggests that melanin's quinone groups, when excited by light, could donate electrons to the mitochondrial ubiquinone pool (Coenzyme Q) or to cytosolic NAD⁺, which then shuttles into the mitochondria.
The ETC is essentially an assembly line that passes electrons along a series of carriers (most of them being quinone or iron-sulfur cluster proteins) to ultimately produce ATP. Normally, those electrons come from breaking down food (glucose, fats) and are delivered via NADH/FADH₂.
But if melanin can hand electrons directly to the ETC carriers (imagine it giving electrons to CoQ10, which then feeds them into Complex III of the mitochondria), the mitochondria wouldn't know or care whether those electrons came from a bowl of cereal or a burst of sunlight – they'd still use them to pump protons and synthesize ATP.
In fact, melanin's monomers (indolequinones) resemble some of the quinone structures in the ETC, hinting that melanin could interface nicely with our biochemistry. One could say melanin plugs into the cellular power grid.
Researchers drew an analogy to methylene blue, a blue dye (I am NOT a fan of for the following reasons) known to accept electrons and then donate them into the mitochondrial ETC, effectively bypassing normal metabolism and enhancing ATP production. Melanin, with light's help, might act in a somewhat similar way, donating electrons "activated by light photons" to the quinone carriers of respiration.
Those electrons then flow down to oxygen, generating water and ATP in the process – the usual end of the line for respiration, only with an extra electron source at the start.
Another mechanism, championed by Solís-Herrera, centers on water splitting and hydrogen release. When melanin absorbs a photon, it could use that energy to break a water molecule (H₂O) into O₂ (which might be released or used internally) and hydrogen in a reduced form (perhaps as H₂ gas or as protons + electrons that reduce something). Solís-Herrera's experiments indicated melanin can produce molecular hydrogen (H₂) and oxygen from water in cyclic fashion.
The hydrogen (a high-energy molecule) could diffuse through the cell and be used by enzymes or the mitochondria (hydrogen can donate electrons to the ETC via certain pathways, or combine with oxygen to yield water and energy). Intriguingly, hydrogen gas is a potent antioxidant that can protect cells from damage, and perhaps melanin-generated hydrogen helps mitigate oxidative stress while also carrying energy.
In any case, water is abundant in cells, so if melanin continuously cycles water into hydrogen and oxygen using ambient light, it's like each melanin granule is a tiny rechargeable battery: light charges it (splitting water, storing energy in hydrogen/electron form), and the cell "discharges" it by using that hydrogen/electron to do work, re-forming water.
Unlike chlorophyll which performs one-way water-splitting (it needs fresh water and discards the O₂), melanin might do this cyclically, maintaining a local pool of recyclable water and hydrogen.
One paper even claimed "melanin is thousands of times more efficient at dissociating water than chlorophyll", partly because melanin can work in the dark (using stored energy) as well as in light. If that is verified, it means melanin is an exceptionally good energy buffer, charging up with any available photons and slowly releasing energy over time.
The convergence of all these findings – fungal radiosynthesis, cell culture anomalies, animal physiology, phototherapy, and the photochemistry of melanin – has started to convince more scientists that melanin's role in biology deserves a serious reappraisal. No longer can we view melanin only as a static shield or cosmetic pigment. It increasingly appears to be a dynamic, functional biomolecule deeply integrated with redox biology and bioenergetics.
As Bajic and Panfoli wrote in a 2012 hypothesis paper, melanin has "extraordinary properties" and its "most important property is participation in electron transfer reactions, reducing and oxidizing other molecules"⁸.
They even note that melanin's key monomer (indolequinone) can perform "photodriven proton transfer cycles" – essentially confirming that melanin can harness light to shuttle protons, much like the core of chlorophyll's job. And of course, they highlight melanin's radiotropism in fungi, likening it to a broad-band energy harvester like chlorophyll. When mainstream biochemists begin to talk of an animal pigment in the same breath as plant chlorophyll, you know a paradigm shift is in the making.
Melanin, Water, and Light: A New Triad of Life
Supporting this new bioenergetic narrative is a surprising discovery published in Cell in 2014, showing that mammals can absorb dietary chlorophyll metabolites which then accumulate in mitochondria, allowing cells to harvest light to enhance ATP production. This finding—akin to a "Copernican revolution" in bioenergetics—challenges the long-standing belief that animals are strictly heterotrophic.
It strongly supports the idea that humans, at least under some circumstances, can behave as photoheterotrophs—organisms that partially rely on light for energy acquisition⁹.
But the new view posits melanin can capture photon energy in a useful chemical form, not just waste heat. One paper noted that melanin behaves as a "broad-band radiation energy harvester, similar to chlorophyll⁷ – a striking comparison that underscores the convergence between plant and animal solutions.
How would melanin integrate with cellular metabolism? A likely scenario is through the mitochondrial electron transport chain (ETC) or other electron acceptors like NAD⁺/NADH. Mathewson's hypothesis, for instance, suggests that melanin's quinone groups, when excited by light, could donate electrons to the mitochondrial ubiquinone pool (Coenzyme Q) or to cytosolic NAD⁺, which then shuttles into the mitochondria.
The ETC is essentially an assembly line that passes electrons along a series of carriers (most of them being quinone or iron-sulfur cluster proteins) to ultimately produce ATP. Normally, those electrons come from breaking down food (glucose, fats) and are delivered via NADH/FADH₂.
But if melanin can hand electrons directly to the ETC carriers (imagine it giving electrons to CoQ10, which then feeds them into Complex III of the mitochondria), the mitochondria wouldn't know or care whether those electrons came from a bowl of cereal or a burst of sunlight – they'd still use them to pump protons and synthesize ATP.
In fact, melanin's monomers (indolequinones) resemble some of the quinone structures in the ETC, hinting that melanin could interface nicely with our biochemistry. One could say melanin plugs into the cellular power grid.
Researchers drew an analogy to methylene blue, a blue dye (I am NOT a fan of for the following reasons) known to accept electrons and then donate them into the mitochondrial ETC, effectively bypassing normal metabolism and enhancing ATP production. Melanin, with light's help, might act in a somewhat similar way, donating electrons "activated by light photons" to the quinone carriers of respiration.
Those electrons then flow down to oxygen, generating water and ATP in the process – the usual end of the line for respiration, only with an extra electron source at the start.
Another mechanism, championed by Solís-Herrera, centers on water splitting and hydrogen release. When melanin absorbs a photon, it could use that energy to break a water molecule (H₂O) into O₂ (which might be released or used internally) and hydrogen in a reduced form (perhaps as H₂ gas or as protons + electrons that reduce something). Solís-Herrera's experiments indicated melanin can produce molecular hydrogen (H₂) and oxygen from water in cyclic fashion.
The hydrogen (a high-energy molecule) could diffuse through the cell and be used by enzymes or the mitochondria (hydrogen can donate electrons to the ETC via certain pathways, or combine with oxygen to yield water and energy). Intriguingly, hydrogen gas is a potent antioxidant that can protect cells from damage, and perhaps melanin-generated hydrogen helps mitigate oxidative stress while also carrying energy.
In any case, water is abundant in cells, so if melanin continuously cycles water into hydrogen and oxygen using ambient light, it's like each melanin granule is a tiny rechargeable battery: light charges it (splitting water, storing energy in hydrogen/electron form), and the cell "discharges" it by using that hydrogen/electron to do work, re-forming water.
Unlike chlorophyll which performs one-way water-splitting (it needs fresh water and discards the O₂), melanin might do this cyclically, maintaining a local pool of recyclable water and hydrogen.
One paper even claimed "melanin is thousands of times more efficient at dissociating water than chlorophyll", partly because melanin can work in the dark (using stored energy) as well as in light. If that is verified, it means melanin is an exceptionally good energy buffer, charging up with any available photons and slowly releasing energy over time.
The convergence of all these findings – fungal radiosynthesis, cell culture anomalies, animal physiology, phototherapy, and the photochemistry of melanin – has started to convince more scientists that melanin's role in biology deserves a serious reappraisal. No longer can we view melanin only as a static shield or cosmetic pigment. It increasingly appears to be a dynamic, functional biomolecule deeply integrated with redox biology and bioenergetics.
As Bajic and Panfoli wrote in a 2012 hypothesis paper, melanin has "extraordinary properties" and its "most important property is participation in electron transfer reactions, reducing and oxidizing other molecules"⁸.
They even note that melanin's key monomer (indolequinone) can perform "photodriven proton transfer cycles" – essentially confirming that melanin can harness light to shuttle protons, much like the core of chlorophyll's job. And of course, they highlight melanin's radiotropism in fungi, likening it to a broad-band energy harvester like chlorophyll. When mainstream biochemists begin to talk of an animal pigment in the same breath as plant chlorophyll, you know a paradigm shift is in the making.
Melanin, Water, and Light: A New Triad of Life
Supporting this new bioenergetic narrative is a surprising discovery published in Cell in 2014, showing that mammals can absorb dietary chlorophyll metabolites which then accumulate in mitochondria, allowing cells to harvest light to enhance ATP production. This finding—akin to a "Copernican revolution" in bioenergetics—challenges the long-standing belief that animals are strictly heterotrophic.
It strongly supports the idea that humans, at least under some circumstances, can behave as photoheterotrophs—organisms that partially rely on light for energy acquisition⁹.
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Another pillar of this emerging paradigm is the work of Dr. Gerald Pollack, whose groundbreaking research into the fourth phase of water—also known as EZ water (Exclusion Zone water)—has revolutionized our understanding of intracellular water dynamics.
Pollack discovered that when water is in contact with hydrophilic surfaces, it organizes into a structured, negatively charged phase that excludes solutes, forming a kind of biological battery. This phase, he found, expands dramatically under light exposure, suggesting a direct photonic influence on water structuring.
Pollack discovered that when water is in contact with hydrophilic surfaces, it organizes into a structured, negatively charged phase that excludes solutes, forming a kind of biological battery. This phase, he found, expands dramatically under light exposure, suggesting a direct photonic influence on water structuring.
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In fact, some of his lab's data points to the possibility that this fourth phase of water could play a role in photolysis—the splitting of water into hydrogen and oxygen—mirroring what melanin appears to do. Taken together, the EZ model and melanin photochemistry open the door to understanding how light, water, and pigment form a functional trinity at the heart of cellular energetics¹⁰.
Implications: A New Light on Life and Health
The idea that we, as humans, might be quietly solar-powered in some measure is profoundly intriguing. It blurs the line we drew between plants and animals, suggesting that we retained a sliver of our distant photosynthetic ancestry (recall that the very first organisms on Earth were likely light-powered). This "rediscovery" of melanin's role is not just an esoteric detail; it has sweeping implications for fields ranging from evolution and ecology to medicine and even technology.
Evolutionary perspective: If melanin provides a metabolic boost, however small, it would have conferred advantages throughout the tree of life. Dark pigmentation could be selected not just for UV protection or camouflage, but for energy capture. This might explain, for example, why many cold-blooded animals (reptiles, amphibians) are dark-colored: beyond absorbing heat, their melanin may also directly give them a bit of extra energy or endurance. In human evolution, as discussed, the coupling of hair loss and increased melanin in the skin likely wasn't coincidental.
According to the conventional savannah hypothesis--which I'll critically examine in upcoming posts in this series—our ancestors supposedly transitioned from forest to open grasslands. If this scenario holds any truth, a "photonic trickle charge" via melanin could have helped fuel larger brains and longer treks. It's a highly romantic notion – sunlight itself nurturing our nascent intelligence – but it has a scientific backbone now. Evolutionary biologists might need to re-evaluate the drivers of pigmentation changes in many lineages through this lens.
Implications: A New Light on Life and Health
The idea that we, as humans, might be quietly solar-powered in some measure is profoundly intriguing. It blurs the line we drew between plants and animals, suggesting that we retained a sliver of our distant photosynthetic ancestry (recall that the very first organisms on Earth were likely light-powered). This "rediscovery" of melanin's role is not just an esoteric detail; it has sweeping implications for fields ranging from evolution and ecology to medicine and even technology.
Evolutionary perspective: If melanin provides a metabolic boost, however small, it would have conferred advantages throughout the tree of life. Dark pigmentation could be selected not just for UV protection or camouflage, but for energy capture. This might explain, for example, why many cold-blooded animals (reptiles, amphibians) are dark-colored: beyond absorbing heat, their melanin may also directly give them a bit of extra energy or endurance. In human evolution, as discussed, the coupling of hair loss and increased melanin in the skin likely wasn't coincidental.
According to the conventional savannah hypothesis--which I'll critically examine in upcoming posts in this series—our ancestors supposedly transitioned from forest to open grasslands. If this scenario holds any truth, a "photonic trickle charge" via melanin could have helped fuel larger brains and longer treks. It's a highly romantic notion – sunlight itself nurturing our nascent intelligence – but it has a scientific backbone now. Evolutionary biologists might need to re-evaluate the drivers of pigmentation changes in many lineages through this lens.
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Health and medicine: Perhaps the most immediate significance of melanin's bioenergetics is in understanding diseases. The brain and eyes are two melanin-rich, high-energy demand organs. If melanin's energy contribution falters (due to aging or damage), these organs might suffer energy deficits. It is suggestive that Parkinson's disease involves loss of neuromelanin-rich neurons in the substantia nigra – could part of the pathology be an energy shortfall when those pigmented neurons die off?
Likewise, as we age, the retinal pigmented epithelium (filled with melanin) accumulates damage (drusen, lipofuscin) and loses efficiency; age-related macular degeneration (AMD) might involve the RPE no longer supporting photoreceptors energetically.
A 2012 paper proposed exactly this: "a failure in [the] light/melanin/water system" was posited as a cause of AMD and Alzheimer's disease¹¹. The authors noted that melanin's ability to dissociate water (what they termed "human photosynthesis") likely declines with age, contributing to chronic energy deficiency in neurons and retinal cells. This is a radical shift from viewing melanin as merely protective; here it's almost an endocrine organ, whose dysfunction could lead to neurodegeneration.
It's no coincidence that melatonin (a circadian hormone) and melanin share a common root and interplay – melatonin is produced in the pineal gland, which is essentially a piece of evolved retinal tissue and contains melanin.
Some researchers think melatonin, which regulates sleep and is a powerful antioxidant, might synergize with melanin's function, both working to maintain mitochondrial health in the brain and retina. If melanin is truly an energy transducer, then conditions like chronic fatigue, metabolic syndromes, or even developmental issues might involve melanin's activity. This opens new avenues for treatment: enhancing melanin's function or compensating for its decline.
One exciting development is the idea of melanin-mediated therapies. For instance, Solís-Herrera's group developed a compound called QIAPI-1, a melanin precursor, and reported that it improved visual function in patients with retinitis pigmentosa and AMD, possibly by boosting melanin content and thus energy availability in retinal cells.
There is also interest in light therapy tuned to melanin. If near-infrared can stimulate melanin to produce more energy (in addition to directly stimulating mitochondria), then devices emitting specific wavelengths might treat neurological and retinal diseases by literally lighting them up.
On the flip side, understanding melanin's role might explain why too much light (especially blue light) can sometimes harm the eyes or skin – it might overstimulate or dysregulate the melanin system.
Bio-melanin as a Therapeutic Intervention: The emerging understanding of melanin's bioenergetic properties opens revolutionary possibilities for therapeutic applications using exogenous melanin sources. This may finally explain the profound healing properties of melanin-rich substances that have puzzled researchers for decades.
The most dramatic evidence for melanin's therapeutic potential comes from radioprotection studies. In 2012, researchers published groundbreaking findings
in Toxicology and AppliedPharmacology that should have revolutionized our approach to radiation protection. In their study, "Melanin, a promising radioprotector: mechanisms of actions in a mice model," they administered melanin isolated from the fungus Gliocephalotrichum simplex to BALB/c mice before exposing them to lethal doses of gamma radiation (6-7 Grays—roughly equivalent to what killed many Chernobyl first responders).
The results were extraordinary: mice receiving just 50 mg/kg of melanin showed 100% greater survival at 30 days compared to untreated mice. Perhaps equally important, the melanin showed no toxicity even at double this dose (100 mg/kg), suggesting a remarkable safety profile.
The evidence for melanin's radioprotective power extends beyond isolated compounds. A 2012 study in Cancer Biotherapy & Radiopharmaceuticals, titled "Compton Scattering by Internal Shields Based on Melanin-Containing Mushrooms Provides Protection of Gastrointestinal Tract from Ionizing Radiation," provided even more dramatic proof that melanin—not other mushroom compounds—is the key radioprotective agent.
In this elegant experiment, researchers fed mice Judas' ear mushroom (Auricularia auricula-judae), a melanin-rich fungus common in East Asian cuisine, just one hour before exposing them to a massive 9 Gray dose of Cesium-137 radiation. To put this in perspective, 0.1 Gray is considered dangerously high for humans—this dose was 90 times that threshold. The results were striking: all control mice died within 13 days, while approximately 90% of the mushroom-fed mice survived.
But here's the crucial finding that proves melanin's specific role: when mice were fed white porcini mushrooms (which lack melanin but contain all the other bioactive mushroom compounds), they died almost as quickly as controls. However, when researchers supplemented those white mushrooms with melanin, the mice gained the same radioprotection as those eating the melanized mushrooms.
This definitively demonstrates that melanin—not polysaccharides, beta-glucans, or other celebrated mushroom compounds—provides the radioprotective effect.
The mechanism appears to involve melanin functioning as an "internal shield" through Compton scattering, where melanin absorbs and dissipates radiation energy.
But given what we now know about melanin's bioenergetic properties, it's likely doing far more than just shielding—it may be converting that potentially lethal radiation into useful biological energy, turning a death sentence into a power source. The fact that oral consumption of melanin-rich foods provides systemic protection suggests that dietary melanin can be absorbed and distributed throughout the body, potentially establishing a distributed network of microscopic radiation-harvesting, energy-generating centers.
Think about the implications: a natural pigment, administered at modest doses or simply consumed in food, provides near-complete protection against radiation exposure that would normally be fatal. If melanin can perform this feat against extreme radiation, imagine its potential against the lower-level electromagnetic stressors we face daily—from medical X-rays to electromagnetic pollution.
This finding illuminates why Chaga mushroom (Inonotus obliquus), one of the most melanin-dense organisms on Earth, has demonstrated remarkable radioprotective, anti-cancer, and immune-modulating properties that far exceed what its known nutritional components would predict.
Similarly, other deeply pigmented medicinal mushrooms like Reishi and Turkey Tail exhibit therapeutic effects that conventional physiochemistry cannot adequately explain.
The therapeutic potential becomes even clearer when we consider that individuals with illness often have compromised melanin function—whether through aging, oxidative damage, or genetic factors. Supplementing with bio-melanin from external sources could theoretically restore this critical bioenergetic system. This aligns with research showing that melanin can function as a "holy grail" of radioprotective compounds, capable of both shielding against radiation damage and potentially converting that harmful energy into useful biological power.
This melanin-centric view might also explain the exceptional therapeutic value of organ meats, which are highly melanized tissues.
Traditional cultures have long prized organs like liver, kidney, and heart as medicine foods, attributing almost mystical healing properties to them. Through the lens of melanin bioenergetics, we can now understand why: these organs are rich in melanin-containing cells (particularly in their blood vessel linings and connective tissues), potentially providing a direct source of functional melanin that can be incorporated into our own bioenergetic systems.
The implications are profound: rather than viewing melanin supplementation merely as antioxidant therapy, we might be directly providing cells with microscopic energy-generating engines.
For individuals with neurodegenerative diseases (where neuromelanin is depleted), chronic fatigue (where cellular energy production is compromised), or radiation exposure (where protective mechanisms are overwhelmed), bio-melanin supplementation could offer a fundamentally new therapeutic approach—one that works by restoring the body's ability to harvest energy from the ambient electromagnetic environment.
This also suggests why melanin-rich foods and supplements often demonstrate benefits far beyond their nutritional content—they may be providing not just molecules, but functional bioenergetic infrastructure that our cells can utilize to enhance their own energy production and resilience.
In our modern world, where we're constantly exposed to electromagnetic radiation from countless sources, regular consumption of melanin-rich foods might provide both ongoing protection and enhanced bioenergetic capacity. It's a perfect example of food as medicine, where a single compound serves both protective and energetic functions.
Technology and bioinspiration: Melanin's ability to convert radiation to electricity or to split water has not gone unnoticed by engineers. There are efforts to create melanin-based solar cells and batteries. Melanin is benign, abundant (you could potentially synthesize it from waste biomass), and works across broad spectra, making it an attractive material for sustainable energy devices. In 2015, researchers at the Centro de Estudios de la Fotosíntesis Humana in Mexico actually demonstrated a prototype "melanin battery."
It was essentially a long-lasting battery made of melanin and water, which mimicked the charging-discharging cycle of melanin's photochemistry¹². When light hit the melanin in the device, it would produce current (by splitting water and releasing electrons); in the dark, it could be recharged by chemical means (recombining hydrogen and oxygen).
While still experimental, such a concept, if scaled, could lead to novel solar energy storage systems – imagine batteries that recharge with sunlight without traditional photovoltaic panels, or coatings that power electronics from ambient light
Likewise, as we age, the retinal pigmented epithelium (filled with melanin) accumulates damage (drusen, lipofuscin) and loses efficiency; age-related macular degeneration (AMD) might involve the RPE no longer supporting photoreceptors energetically.
A 2012 paper proposed exactly this: "a failure in [the] light/melanin/water system" was posited as a cause of AMD and Alzheimer's disease¹¹. The authors noted that melanin's ability to dissociate water (what they termed "human photosynthesis") likely declines with age, contributing to chronic energy deficiency in neurons and retinal cells. This is a radical shift from viewing melanin as merely protective; here it's almost an endocrine organ, whose dysfunction could lead to neurodegeneration.
It's no coincidence that melatonin (a circadian hormone) and melanin share a common root and interplay – melatonin is produced in the pineal gland, which is essentially a piece of evolved retinal tissue and contains melanin.
Some researchers think melatonin, which regulates sleep and is a powerful antioxidant, might synergize with melanin's function, both working to maintain mitochondrial health in the brain and retina. If melanin is truly an energy transducer, then conditions like chronic fatigue, metabolic syndromes, or even developmental issues might involve melanin's activity. This opens new avenues for treatment: enhancing melanin's function or compensating for its decline.
One exciting development is the idea of melanin-mediated therapies. For instance, Solís-Herrera's group developed a compound called QIAPI-1, a melanin precursor, and reported that it improved visual function in patients with retinitis pigmentosa and AMD, possibly by boosting melanin content and thus energy availability in retinal cells.
There is also interest in light therapy tuned to melanin. If near-infrared can stimulate melanin to produce more energy (in addition to directly stimulating mitochondria), then devices emitting specific wavelengths might treat neurological and retinal diseases by literally lighting them up.
On the flip side, understanding melanin's role might explain why too much light (especially blue light) can sometimes harm the eyes or skin – it might overstimulate or dysregulate the melanin system.
Bio-melanin as a Therapeutic Intervention: The emerging understanding of melanin's bioenergetic properties opens revolutionary possibilities for therapeutic applications using exogenous melanin sources. This may finally explain the profound healing properties of melanin-rich substances that have puzzled researchers for decades.
The most dramatic evidence for melanin's therapeutic potential comes from radioprotection studies. In 2012, researchers published groundbreaking findings
in Toxicology and AppliedPharmacology that should have revolutionized our approach to radiation protection. In their study, "Melanin, a promising radioprotector: mechanisms of actions in a mice model," they administered melanin isolated from the fungus Gliocephalotrichum simplex to BALB/c mice before exposing them to lethal doses of gamma radiation (6-7 Grays—roughly equivalent to what killed many Chernobyl first responders).
The results were extraordinary: mice receiving just 50 mg/kg of melanin showed 100% greater survival at 30 days compared to untreated mice. Perhaps equally important, the melanin showed no toxicity even at double this dose (100 mg/kg), suggesting a remarkable safety profile.
The evidence for melanin's radioprotective power extends beyond isolated compounds. A 2012 study in Cancer Biotherapy & Radiopharmaceuticals, titled "Compton Scattering by Internal Shields Based on Melanin-Containing Mushrooms Provides Protection of Gastrointestinal Tract from Ionizing Radiation," provided even more dramatic proof that melanin—not other mushroom compounds—is the key radioprotective agent.
In this elegant experiment, researchers fed mice Judas' ear mushroom (Auricularia auricula-judae), a melanin-rich fungus common in East Asian cuisine, just one hour before exposing them to a massive 9 Gray dose of Cesium-137 radiation. To put this in perspective, 0.1 Gray is considered dangerously high for humans—this dose was 90 times that threshold. The results were striking: all control mice died within 13 days, while approximately 90% of the mushroom-fed mice survived.
But here's the crucial finding that proves melanin's specific role: when mice were fed white porcini mushrooms (which lack melanin but contain all the other bioactive mushroom compounds), they died almost as quickly as controls. However, when researchers supplemented those white mushrooms with melanin, the mice gained the same radioprotection as those eating the melanized mushrooms.
This definitively demonstrates that melanin—not polysaccharides, beta-glucans, or other celebrated mushroom compounds—provides the radioprotective effect.
The mechanism appears to involve melanin functioning as an "internal shield" through Compton scattering, where melanin absorbs and dissipates radiation energy.
But given what we now know about melanin's bioenergetic properties, it's likely doing far more than just shielding—it may be converting that potentially lethal radiation into useful biological energy, turning a death sentence into a power source. The fact that oral consumption of melanin-rich foods provides systemic protection suggests that dietary melanin can be absorbed and distributed throughout the body, potentially establishing a distributed network of microscopic radiation-harvesting, energy-generating centers.
Think about the implications: a natural pigment, administered at modest doses or simply consumed in food, provides near-complete protection against radiation exposure that would normally be fatal. If melanin can perform this feat against extreme radiation, imagine its potential against the lower-level electromagnetic stressors we face daily—from medical X-rays to electromagnetic pollution.
This finding illuminates why Chaga mushroom (Inonotus obliquus), one of the most melanin-dense organisms on Earth, has demonstrated remarkable radioprotective, anti-cancer, and immune-modulating properties that far exceed what its known nutritional components would predict.
Similarly, other deeply pigmented medicinal mushrooms like Reishi and Turkey Tail exhibit therapeutic effects that conventional physiochemistry cannot adequately explain.
The therapeutic potential becomes even clearer when we consider that individuals with illness often have compromised melanin function—whether through aging, oxidative damage, or genetic factors. Supplementing with bio-melanin from external sources could theoretically restore this critical bioenergetic system. This aligns with research showing that melanin can function as a "holy grail" of radioprotective compounds, capable of both shielding against radiation damage and potentially converting that harmful energy into useful biological power.
This melanin-centric view might also explain the exceptional therapeutic value of organ meats, which are highly melanized tissues.
Traditional cultures have long prized organs like liver, kidney, and heart as medicine foods, attributing almost mystical healing properties to them. Through the lens of melanin bioenergetics, we can now understand why: these organs are rich in melanin-containing cells (particularly in their blood vessel linings and connective tissues), potentially providing a direct source of functional melanin that can be incorporated into our own bioenergetic systems.
The implications are profound: rather than viewing melanin supplementation merely as antioxidant therapy, we might be directly providing cells with microscopic energy-generating engines.
For individuals with neurodegenerative diseases (where neuromelanin is depleted), chronic fatigue (where cellular energy production is compromised), or radiation exposure (where protective mechanisms are overwhelmed), bio-melanin supplementation could offer a fundamentally new therapeutic approach—one that works by restoring the body's ability to harvest energy from the ambient electromagnetic environment.
This also suggests why melanin-rich foods and supplements often demonstrate benefits far beyond their nutritional content—they may be providing not just molecules, but functional bioenergetic infrastructure that our cells can utilize to enhance their own energy production and resilience.
In our modern world, where we're constantly exposed to electromagnetic radiation from countless sources, regular consumption of melanin-rich foods might provide both ongoing protection and enhanced bioenergetic capacity. It's a perfect example of food as medicine, where a single compound serves both protective and energetic functions.
Technology and bioinspiration: Melanin's ability to convert radiation to electricity or to split water has not gone unnoticed by engineers. There are efforts to create melanin-based solar cells and batteries. Melanin is benign, abundant (you could potentially synthesize it from waste biomass), and works across broad spectra, making it an attractive material for sustainable energy devices. In 2015, researchers at the Centro de Estudios de la Fotosíntesis Humana in Mexico actually demonstrated a prototype "melanin battery."
It was essentially a long-lasting battery made of melanin and water, which mimicked the charging-discharging cycle of melanin's photochemistry¹². When light hit the melanin in the device, it would produce current (by splitting water and releasing electrons); in the dark, it could be recharged by chemical means (recombining hydrogen and oxygen).
While still experimental, such a concept, if scaled, could lead to novel solar energy storage systems – imagine batteries that recharge with sunlight without traditional photovoltaic panels, or coatings that power electronics from ambient light
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Melanin also has strong radiation-shielding properties (it can absorb harmful radiation and dissipate it). NASA has reportedly been interested in melanin to protect astronauts or even enable self-healing electronics that use radiation as power (inspired by those fungi on space stations that might grow on the outside, feeding on cosmic rays). This is a beautiful example of technology coming full circle to imitate biology, which in turn is teaching us new biology.
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Philosophical and spiritual reflections: Beyond the concrete applications, the resurgence of melanin's significance carries a philosophical weight. Culturally, melanin has been a loaded topic – from social connotations of skin color to references to "melanin magic" in various communities. It's poetic that this pigment, often at the center of human divisions, is revealed to be a unifying life force connecting all races and even species.
Every human has melanin (even albinos have some in the brain), and it might be doing the same fundamental energy work in all of us.
In a way, melanin is a bridge between us and the sun. We've always known we needed sunlight (for vitamin D, for warmth, for crops to grow), but this is a more intimate connection – the sun's photons may directly charge our inner batteries when we bask in its rays. "We are sunlight, in a different form," goes a spiritual saying.
Here we see a scientific echo of that sentiment. The pigment that gives us our beautiful spectrum of skin tones might also be a conduit for the universal energy that pervades our world – light itself.
Upgrade to paidOne cannot help but feel a sense of awe at the elegance of it: plants evolved green chlorophyll to capture sunlight externally, and animals appear to have evolved black/brown melanin to capture any strays and perhaps for internal use. It's almost yin and yang – chlorophyll (green) and melanin (dark) each absorbing what the other does not (melanin absorbs across visible including green, where chlorophyll is least effective).
Together, they ensure that life, in sum, wastes no part of the sunlight spectrum. In fact, melanin's absorption spectrum complements chlorophyll's; chlorophyll mainly grabs red and blue, while melanin grabs broad-spectrum including greens and UV.
In ecosystems, fungi often live in the shade of plants – could they be using melanin to scavenge leftover photons that filter through? It's a vision of nature where nothing is wasted, and life finds ways to capture energy at every opportunity.
Every human has melanin (even albinos have some in the brain), and it might be doing the same fundamental energy work in all of us.
In a way, melanin is a bridge between us and the sun. We've always known we needed sunlight (for vitamin D, for warmth, for crops to grow), but this is a more intimate connection – the sun's photons may directly charge our inner batteries when we bask in its rays. "We are sunlight, in a different form," goes a spiritual saying.
Here we see a scientific echo of that sentiment. The pigment that gives us our beautiful spectrum of skin tones might also be a conduit for the universal energy that pervades our world – light itself.
Upgrade to paidOne cannot help but feel a sense of awe at the elegance of it: plants evolved green chlorophyll to capture sunlight externally, and animals appear to have evolved black/brown melanin to capture any strays and perhaps for internal use. It's almost yin and yang – chlorophyll (green) and melanin (dark) each absorbing what the other does not (melanin absorbs across visible including green, where chlorophyll is least effective).
Together, they ensure that life, in sum, wastes no part of the sunlight spectrum. In fact, melanin's absorption spectrum complements chlorophyll's; chlorophyll mainly grabs red and blue, while melanin grabs broad-spectrum including greens and UV.
In ecosystems, fungi often live in the shade of plants – could they be using melanin to scavenge leftover photons that filter through? It's a vision of nature where nothing is wasted, and life finds ways to capture energy at every opportunity.
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A Note on Melanin and Evolutionary Resilience
Emerging discussion around melanin's bioenergetic properties also intersects with the longstanding cultural, evolutionary, and even spiritual significance attributed to dark skin. For decades, references to "melanin magic" have appeared in cultural narratives—sometimes dismissed as pseudoscience. But new biological insights demand we revisit and possibly revalidate some of these intuitions.
The extraordinary resilience demonstrated by highly melanized populations, despite centuries of enslavement, colonization, and systemic violence, raises legitimate questions about physiological advantages conferred by higher melanin density. Is it possible that melanin not only buffers environmental stressors like UV radiation and oxidative damage, but also contributes to greater energetic efficiency, cognitive endurance, or tissue repair capacity? We must explore this with nuance and rigor—not to claim superiority, but to acknowledge evolutionary adaptations that may indeed be profound.
The time has come to view melanin not merely through a cosmetic or photoprotective lens, but as a central player in the conversation on human diversity, adaptability, and vitality.
Epilogue: Between Father and Future
This journey has not been solitary. In 2015, I engaged in a vivid scientific dialogue with two thinkers who shaped my intellectual formation: my father, Dr. Sungchul Ji, and Dr. Gerald Pollack. When I presented the melanin-water-energy hypothesis to both, the responses were illuminating in different ways.
My father, with characteristic rigor, pointed out several weaknesses in the argument: questionable stoichiometry, lack of enzyme linkage, and an overstatement of ATP's irrelevance.
Yet even as he voiced deep skepticism, it was that very dialogue—the generative friction between us—that helped refine my thinking. Meanwhile, Dr. Pollack, though cautious, found the ideas thrilling. He recognized their alignment with his own discoveries and proposed that melanin could function as a light-absorbing enhancer of the EZ water charge-separation process, essentially serving as a bio-amplifier of cellular photonics.
In 2017, my father, Sungchul Ji, PhD—emeritus professor—and I filmed a series of dialogues together in Boulder. You can follow him on his Substack here.
This confluence--skepticism from within my own family, and enthusiastic curiosity from a leading biophysicist—is emblematic of science at its best. Discovery isn't born from consensus; it emerges from dialectic. From respectful disagreement. From holding uncertainty with wonder. From weaving evidence with intuition and daring to ask what's been hiding in plain sight.
The implications of this research extend far beyond visible light. If melanin truly functions as a broad-spectrum electromagnetic transducer, capable of harnessing energy from gamma rays to radio waves, then we must fundamentally reconsider the energetics of biological systems.
The most profound aspect may be melanin's proposed ability to catalyze the photolysis of water molecules—splitting H₂O into hydrogen and oxygen using captured electromagnetic energy. This seemingly simple reaction, if occurring at the scale suggested by researchers like Solís-Herrera, could be releasing immense amounts of chemical energy throughout our bodies, continuously, silently powering cellular processes we've attributed solely to food metabolism.
Consider the magnitude: water comprises 60-70% of our body mass (and perhaps even more stunning, 99% of all molecules in our body by number).
If even a fraction of this water undergoes melanin-mediated photolysis and reformation, the energy implications are staggering. We're not merely discussing supplemental energy from sunshine, but potentially a primary bioenergetic system that operates across the entire electromagnetic spectrum—from cosmic radiation to terrestrial radio waves, from visible light to infrared heat.
Every electromagnetic wave that penetrates our tissues could theoretically be captured by melanin and converted into usable chemical energy through water splitting.
"There is more in melanin than meets the eye," Goodman observed, but perhaps even he underestimated the depth of that statement. We may be witnessing the unveiling of a fundamental organizing principle of life—one where melanin serves as the crucial interface between electromagnetic fields and biochemical processes.
The questions this raises are profound: How much of our daily energy actually derives from this melanin-water system versus traditional food metabolism? What role might this play in unexplained phenomena like the documented cases of individuals surviving extended periods without food? Could disruptions in this system underlie chronic fatigue and neurodegenerative conditions?
The journey ahead demands rigorous investigation. We need quantitative measurements of melanin's contribution to human bioenergetics in vivo. We must map the full spectrum of electromagnetic frequencies that melanin can transduce into chemical energy.
We should investigate whether other biomolecules possess similar hidden capacities. Most critically, we must explore the therapeutic implications—could targeted electromagnetic therapies enhance melanin function to treat energy-deficit disorders?
This story represents more than a scientific curiosity; it's a fundamental revision of how we understand life's relationship with energy. The conventional view—that animals are purely chemical machines dependent on food—may be only a partial truth. Instead, we may be electromagnetic beings as much as chemical ones, with melanin serving as our biological antenna, continuously harvesting energy from the omnipresent electromagnetic environment and converting it into the currency of life through the elegant chemistry of water splitting.
As this series continues, I invite you to join me in exploring these revolutionary implications. We are not merely adjusting details within existing paradigms but potentially witnessing the emergence of an entirely new understanding of bioenergetics—one where melanin, electromagnetic radiation, water, and consciousness converge in ways that challenge our most basic assumptions about what it means to be alive.
Next in the SeriesIn Part Two of this series, I'll explore what this alternative model of biophysics and bioenergetics reveals about the deep mythological and evolutionary memory stored in the human psyche and genome.
We'll examine threads ranging from the Dogon origin story of an aquatic species from Sirius C, to the mermaid archetype, to yogic anomalies and Elaine Morgan's aquatic ape theory of human origins. How might a reclassification of humans as electromagnetic, water-structured beings reshape our understanding of ancient stories and evolutionary mysteries?
Emerging discussion around melanin's bioenergetic properties also intersects with the longstanding cultural, evolutionary, and even spiritual significance attributed to dark skin. For decades, references to "melanin magic" have appeared in cultural narratives—sometimes dismissed as pseudoscience. But new biological insights demand we revisit and possibly revalidate some of these intuitions.
The extraordinary resilience demonstrated by highly melanized populations, despite centuries of enslavement, colonization, and systemic violence, raises legitimate questions about physiological advantages conferred by higher melanin density. Is it possible that melanin not only buffers environmental stressors like UV radiation and oxidative damage, but also contributes to greater energetic efficiency, cognitive endurance, or tissue repair capacity? We must explore this with nuance and rigor—not to claim superiority, but to acknowledge evolutionary adaptations that may indeed be profound.
The time has come to view melanin not merely through a cosmetic or photoprotective lens, but as a central player in the conversation on human diversity, adaptability, and vitality.
Epilogue: Between Father and Future
This journey has not been solitary. In 2015, I engaged in a vivid scientific dialogue with two thinkers who shaped my intellectual formation: my father, Dr. Sungchul Ji, and Dr. Gerald Pollack. When I presented the melanin-water-energy hypothesis to both, the responses were illuminating in different ways.
My father, with characteristic rigor, pointed out several weaknesses in the argument: questionable stoichiometry, lack of enzyme linkage, and an overstatement of ATP's irrelevance.
Yet even as he voiced deep skepticism, it was that very dialogue—the generative friction between us—that helped refine my thinking. Meanwhile, Dr. Pollack, though cautious, found the ideas thrilling. He recognized their alignment with his own discoveries and proposed that melanin could function as a light-absorbing enhancer of the EZ water charge-separation process, essentially serving as a bio-amplifier of cellular photonics.
In 2017, my father, Sungchul Ji, PhD—emeritus professor—and I filmed a series of dialogues together in Boulder. You can follow him on his Substack here.
This confluence--skepticism from within my own family, and enthusiastic curiosity from a leading biophysicist—is emblematic of science at its best. Discovery isn't born from consensus; it emerges from dialectic. From respectful disagreement. From holding uncertainty with wonder. From weaving evidence with intuition and daring to ask what's been hiding in plain sight.
The implications of this research extend far beyond visible light. If melanin truly functions as a broad-spectrum electromagnetic transducer, capable of harnessing energy from gamma rays to radio waves, then we must fundamentally reconsider the energetics of biological systems.
The most profound aspect may be melanin's proposed ability to catalyze the photolysis of water molecules—splitting H₂O into hydrogen and oxygen using captured electromagnetic energy. This seemingly simple reaction, if occurring at the scale suggested by researchers like Solís-Herrera, could be releasing immense amounts of chemical energy throughout our bodies, continuously, silently powering cellular processes we've attributed solely to food metabolism.
Consider the magnitude: water comprises 60-70% of our body mass (and perhaps even more stunning, 99% of all molecules in our body by number).
If even a fraction of this water undergoes melanin-mediated photolysis and reformation, the energy implications are staggering. We're not merely discussing supplemental energy from sunshine, but potentially a primary bioenergetic system that operates across the entire electromagnetic spectrum—from cosmic radiation to terrestrial radio waves, from visible light to infrared heat.
Every electromagnetic wave that penetrates our tissues could theoretically be captured by melanin and converted into usable chemical energy through water splitting.
"There is more in melanin than meets the eye," Goodman observed, but perhaps even he underestimated the depth of that statement. We may be witnessing the unveiling of a fundamental organizing principle of life—one where melanin serves as the crucial interface between electromagnetic fields and biochemical processes.
The questions this raises are profound: How much of our daily energy actually derives from this melanin-water system versus traditional food metabolism? What role might this play in unexplained phenomena like the documented cases of individuals surviving extended periods without food? Could disruptions in this system underlie chronic fatigue and neurodegenerative conditions?
The journey ahead demands rigorous investigation. We need quantitative measurements of melanin's contribution to human bioenergetics in vivo. We must map the full spectrum of electromagnetic frequencies that melanin can transduce into chemical energy.
We should investigate whether other biomolecules possess similar hidden capacities. Most critically, we must explore the therapeutic implications—could targeted electromagnetic therapies enhance melanin function to treat energy-deficit disorders?
This story represents more than a scientific curiosity; it's a fundamental revision of how we understand life's relationship with energy. The conventional view—that animals are purely chemical machines dependent on food—may be only a partial truth. Instead, we may be electromagnetic beings as much as chemical ones, with melanin serving as our biological antenna, continuously harvesting energy from the omnipresent electromagnetic environment and converting it into the currency of life through the elegant chemistry of water splitting.
As this series continues, I invite you to join me in exploring these revolutionary implications. We are not merely adjusting details within existing paradigms but potentially witnessing the emergence of an entirely new understanding of bioenergetics—one where melanin, electromagnetic radiation, water, and consciousness converge in ways that challenge our most basic assumptions about what it means to be alive.
Next in the SeriesIn Part Two of this series, I'll explore what this alternative model of biophysics and bioenergetics reveals about the deep mythological and evolutionary memory stored in the human psyche and genome.
We'll examine threads ranging from the Dogon origin story of an aquatic species from Sirius C, to the mermaid archetype, to yogic anomalies and Elaine Morgan's aquatic ape theory of human origins. How might a reclassification of humans as electromagnetic, water-structured beings reshape our understanding of ancient stories and evolutionary mysteries?
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Additional Resources - Dive Deeper Now
For those interested in diving deeper into the revolutionary concepts of the New Biology and your body's innate regenerative capacities, I invite you to explore:
REGENERATE: Unlocking Your Body's Radical Resilience Through the New Biology
My international bestseller, now available in six languages, offers a comprehensive exploration of how we can activate our body's self-healing mechanisms through the New Biology. The book delves into many of the foundational concepts discussed in this essay, including the role of light, water, and cellular intelligence in human health and regeneration. Get your copy here, or get a free chapter here.
For those interested in diving deeper into the revolutionary concepts of the New Biology and your body's innate regenerative capacities, I invite you to explore:
REGENERATE: Unlocking Your Body's Radical Resilience Through the New Biology
My international bestseller, now available in six languages, offers a comprehensive exploration of how we can activate our body's self-healing mechanisms through the New Biology. The book delves into many of the foundational concepts discussed in this essay, including the role of light, water, and cellular intelligence in human health and regeneration. Get your copy here, or get a free chapter here.
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The REGENERATE YOURSELF Masterclass
Join over 400,000 enrollees who have discovered practical ways to implement these groundbreaking concepts in their daily lives. This comprehensive online program translates cutting-edge science into actionable strategies for optimizing your health through the principles of the New Biology.
Enroll entirely free at: regeneratemasterclass.com
Or, get the entire course including advanced modules here now.
Join over 400,000 enrollees who have discovered practical ways to implement these groundbreaking concepts in their daily lives. This comprehensive online program translates cutting-edge science into actionable strategies for optimizing your health through the principles of the New Biology.
Enroll entirely free at: regeneratemasterclass.com
Or, get the entire course including advanced modules here now.
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Both resources provide practical tools and deeper scientific context for understanding how melanin, light, water, and other elements of the New Biology can be harnessed to unlock your body's extraordinary capacity for self-renewal and vitality.
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References
Goodman, Geoffrey, and Dani Bercovich. "Melanin Directly Converts Light for Vertebrate Metabolic Use: Heuristic Thoughts on Birds, Icarus and Dark Human Skin." Medical Hypotheses, vol. 71, no. 2, 2008, pp. 190–202.
² Herrera, Arturo Solís, et al. "Beyond Mitochondria, What Would Be the Energy Source of the Cell?" CNS Agents in Medicinal Chemistry, vol. 15, no. 1, 2015, pp. 32–41.
³ Solís-Herrera, Arturo, et al. "Human Photosynthesis." In Vegetable Consumption and Health: New Research, edited by C. Wilson and M. Morree, Nova Science Publishers, 2012.
⁴ Dadachova, Ekaterina, et al. "Ionizing Radiation Changes the Electronic Properties of Melanin and Enhances the Growth of Melanized Fungi." PLoS One, vol. 2, no. 5, 2007, e457.
⁵ Herrera, Arturo Solís. "The Unsuspected Capacity of Melanin to Transform Light Energy into Chemical Energy and the Surprising Anoxia Tolerance of Chrysemys Picta." MOJ Cell Science & Report, vol. 2, no. 3, 2015, Article 00031.
⁶ Mathewson, Iain. "Did Human Hairlessness Allow Natural Photobiomodulation 2 Million Years Ago and Enable Photobiomodulation Therapy Today?" Medical Hypotheses, vol. 84, no. 5, 2015, pp. 421–428.
⁷ Bajic, Vladimir, and Ivana Panfoli. "Melanin, Energy and the Cell." Medical Hypothesis, Discovery & Innovation in Ophthalmology, vol. 1, no. 2, 2012, pp. 25–27.
⁸ Bajic, Vladimir, and Ivana Panfoli. "Melanin, Energy and the Cell." Medical Hypothesis, Discovery & Innovation in Ophthalmology, vol. 1, no. 2, 2012, pp. 25–27.
⁹ Lee, Chen-Hsun, et al. "Light-Harvesting Chlorophyll Pigments Enable Mammalian Mitochondria to Capture Photonic Energy and Produce ATP." Cell, 2014. https://greenmedinfo.com/blog/chlorophyll-enables-your-cells-captureuse-sunlight-energy-copernican-revolution
¹⁰ Pollack, Gerald H., Figueroa, Xavier, and Zhao, Qing. "Molecules, Water, and Radiant Energy: New Clues for the Origin of Life." International Journal of Molecular Sciences, vol. 10, no. 4, 2009, pp. 1419–1429. https://greenmedinfo.com/blog/can-humans-photosynthesize-1
¹¹ Panfoli, I., et al. "Melatonin and Aβ, Macular Degeneration and Alzheimer's Disease: Same Disease, Different Outcomes?" Medical Hypothesis, Discovery & Innovation in Ophthalmology, vol. 1, no. 2, 2012, pp. 24–29.
¹² Bar-Cohen, Yoseph. "Long-Lasting Battery Made of Melanin and Water." WW-EAP Newsletter, vol. 17, no. 1, 2015, p. 13. Centro de Estudios de la Fotosíntesis Humana.
Goodman, Geoffrey, and Dani Bercovich. "Melanin Directly Converts Light for Vertebrate Metabolic Use: Heuristic Thoughts on Birds, Icarus and Dark Human Skin." Medical Hypotheses, vol. 71, no. 2, 2008, pp. 190–202.
² Herrera, Arturo Solís, et al. "Beyond Mitochondria, What Would Be the Energy Source of the Cell?" CNS Agents in Medicinal Chemistry, vol. 15, no. 1, 2015, pp. 32–41.
³ Solís-Herrera, Arturo, et al. "Human Photosynthesis." In Vegetable Consumption and Health: New Research, edited by C. Wilson and M. Morree, Nova Science Publishers, 2012.
⁴ Dadachova, Ekaterina, et al. "Ionizing Radiation Changes the Electronic Properties of Melanin and Enhances the Growth of Melanized Fungi." PLoS One, vol. 2, no. 5, 2007, e457.
⁵ Herrera, Arturo Solís. "The Unsuspected Capacity of Melanin to Transform Light Energy into Chemical Energy and the Surprising Anoxia Tolerance of Chrysemys Picta." MOJ Cell Science & Report, vol. 2, no. 3, 2015, Article 00031.
⁶ Mathewson, Iain. "Did Human Hairlessness Allow Natural Photobiomodulation 2 Million Years Ago and Enable Photobiomodulation Therapy Today?" Medical Hypotheses, vol. 84, no. 5, 2015, pp. 421–428.
⁷ Bajic, Vladimir, and Ivana Panfoli. "Melanin, Energy and the Cell." Medical Hypothesis, Discovery & Innovation in Ophthalmology, vol. 1, no. 2, 2012, pp. 25–27.
⁸ Bajic, Vladimir, and Ivana Panfoli. "Melanin, Energy and the Cell." Medical Hypothesis, Discovery & Innovation in Ophthalmology, vol. 1, no. 2, 2012, pp. 25–27.
⁹ Lee, Chen-Hsun, et al. "Light-Harvesting Chlorophyll Pigments Enable Mammalian Mitochondria to Capture Photonic Energy and Produce ATP." Cell, 2014. https://greenmedinfo.com/blog/chlorophyll-enables-your-cells-captureuse-sunlight-energy-copernican-revolution
¹⁰ Pollack, Gerald H., Figueroa, Xavier, and Zhao, Qing. "Molecules, Water, and Radiant Energy: New Clues for the Origin of Life." International Journal of Molecular Sciences, vol. 10, no. 4, 2009, pp. 1419–1429. https://greenmedinfo.com/blog/can-humans-photosynthesize-1
¹¹ Panfoli, I., et al. "Melatonin and Aβ, Macular Degeneration and Alzheimer's Disease: Same Disease, Different Outcomes?" Medical Hypothesis, Discovery & Innovation in Ophthalmology, vol. 1, no. 2, 2012, pp. 24–29.
¹² Bar-Cohen, Yoseph. "Long-Lasting Battery Made of Melanin and Water." WW-EAP Newsletter, vol. 17, no. 1, 2015, p. 13. Centro de Estudios de la Fotosíntesis Humana.
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