Rhonda Patrick· PhD
the thing that's, to me, so striking is that these circadian rhythms, you say they run on the day-night cycle or the light-dark cycle, over 15% of the human encoding genome is regulated by the circadian rhythm, and what that means is that genes are being turned on, so they're active and doing what they're supposed to do during a function, or they're being turned off so that they're not active, according to this rhythm.