Andrew Huberman· PhD
Ideally sunlight BTW… but if you can’t, find another source. (None as good but anything better than a phone in the dark/dim).
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The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
Ideally sunlight BTW… but if you can’t, find another source. (None as good but anything better than a phone in the dark/dim).
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.
But in any case, get some sunlight in your eyes once it’s out.
It is especially important to get sunlight in your eyes on *cloudy* mornings… and there is plenty of it.
I make it a point to get sunlight in my eyes in the morning to try and wake up my brain and body because indeed it does that
am light in eyes
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.