Andrew Huberman· PhD
is there any strong evidence that that's how we naturally were designed and have evolved to sleep I in truth I don't think so at least I don't see good evidence right now supporting that but remain open to it
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Direct evidence is thin. The claim is plausible and aligns with adjacent findings, but there isn't yet a body of high-quality work that would let us call it well-supported on its own terms.
is there any strong evidence that that's how we naturally were designed and have evolved to sleep I in truth I don't think so at least I don't see good evidence right now supporting that but remain open to it
Every Sunday: the week’s new conflicts and verdict changes — and nothing else.
Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
10 minutes of bright outdoor light within the first hour of waking anchors the circadian phase and improves sleep onset that night.
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.