Andrew Huberman· PhD
the exposure of those melanopsin ganglion cells in your eyes is absolutely critical for triggering the turnover of stem cells in both the skin and hair, and also turns out in nails.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
the exposure of those melanopsin ganglion cells in your eyes is absolutely critical for triggering the turnover of stem cells in both the skin and hair, and also turns out in nails.
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Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
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There was a study published in the proceedings of the National Academy of Sciences a couple of years ago that showed that the exposure of those melanopsin ganglin cells in your eyes is absolutely critical for triggering the turnover of stem cells in both the skin and hair and also it turns out in nails.