Morning sunlight in the first hour of waking sets the entire circadian system. There is no supplement that replaces it.
About the concept
Longevity
Longevity is not a hack. It is the unforgiving compound interest of ordinary daily choices: sleep, movement, food, sunlight, friendship, purpose. The research is now overwhelming and unanimous on what works — and most people do almost none of it. This page makes the gap visible, …
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