Andrew Huberman· PhD
we're waking up many more times our sleep is much more fragmented and therefore our sleep efficiency is worse
Loading…
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.
we're waking up many more times our sleep is much more fragmented and therefore our sleep efficiency is worse
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.
we see this a lot in older adults sleep late in the night is very fragile much greater probability of them waking up in the second half of the night and the last quarter it's also miserable because most older adults the Cadian Rhythm shifts earlier
most older adults the Cadian Rhythm shifts earlier... as we get older it starts to regress back to what happened when we were children we want to stay up late but we can't we go to bed so early and we wake up early
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.