Andrew Huberman· PhD
One is that sleeping on one side, not on back or stomach, seems to increase the amount of wash out, or wash through, I should say, of the glymphatic system.
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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.
One is that sleeping on one side, not on back or stomach, seems to increase the amount of wash out, or wash through, I should say, of the glymphatic system.
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.
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I find that putting the pillow under my ankles helps me sleep much more deeply and I wake up feeling much more refreshed.
The clearance of some of the metabolites and some of the debris that's accumulated there by just sleeping with feet slightly elevated.
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.