Andrew Huberman· PhD
Daylight savings makes no sense, is counter what we know about light & heath, easy to fix
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We can't find evidence that holds up here. Proponents are reasoning from mechanism or analogy rather than direct human data, and the most credible skeptics raise objections we can't dismiss.
Daylight savings makes no sense, is counter what we know about light & heath, easy to fix
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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Daylight savings makes no sense, is counter what we know about light & heath, easy to fix & Dr Samer Hattar, Chief of the Section on Light & Circadian Rhythms @NIMHgov has said this many times.
Daylight savings makes no sense, is counter what we know about light & heath, easy to fix & Dr Samer Hattar, Chief of the Section on Light & Circadian Rhythms @NIMHgov has said this many times.
Daylight savings makes no sense, is counter what we know about light & heath, easy to fix & Dr Samer Hattar, Chief of the Section on Light & Circadian Rhythms @NIMHgov has said this many times.
The idea of limiting morning sunlight exposure by permanent daylight savings is terrible.
Axing an hour of sleep and no morning sunlight is a bad idea.
The idea of limiting morning sunlight exposure by permanent daylight savings is terrible.
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.