Andrew Huberman· PhD
Right. [laughs] Yeah, another thing is don't use screens within a couple hours of bedtime, because screens are predominantly rich in blue light. And what
Loading…
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.
Right. [laughs] Yeah, another thing is don't use screens within a couple hours of bedtime, because screens are predominantly rich in blue light. And what
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.
if I would grown up in today's era I'd be on my phone and tablet late at night because I was up reading magazines and talking to friends on the phone late at night right so it's not a criticism but but you know disruptions in sleep disruptions in circadian
+ screens off 1 hr before bed
i do think that blue light can mess up your circadian rhythm and you know it's if you take someone and expose them to blue light at noon that's great if you expose them to that at 11 pm and then you try to go to sleep that's messed up
blue light can mess up your circadian rhythm and you know it's if you take someone and expose them to blue light at noon that's great if you expose them to that at 11: p.m. and then you try to go to sleep that's messed up
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.