Andrew Huberman· PhD
And there is this idea of chronotypes, that we all each intrinsically have a best rhythm of either being a morning person.
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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.
And there is this idea of chronotypes, that we all each intrinsically have a best rhythm of either being a morning person.
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some people do Best by going to bed at 800 or 900 p.m. and waking up at 3:00 or 4 in the morning and that's where you would feel best in fact if you're somebody that wakes up at 3:00 or 4 in the morning you might be going to sleep too late and you have this intrinsic chronotype as it's called
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Morning sunlight exposure shifts the cortisol awakening response forward, improving daytime alertness.
Long-term morning sunlight reduces age-related macular degeneration risk.
Sleep regularity predicts all-cause mortality more strongly than sleep duration.
Tracking deep sleep on a wearable accurately reflects EEG-measured slow-wave sleep.
Caffeine has a half-life long enough that consumption after 2pm measurably degrades deep sleep in slow metabolizers.