For the past 2 yrs I’ve been testing whether screens an hour before bed impact my sleep. They do. The effect is not small, it’s very noticeable, and even calming activity like baths or reading doesn’t make it go away.
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.
For the past 2 yrs I’ve been testing whether screens an hour before bed impact my sleep. They do. The effect is not small, it’s very noticeable, and even calming activity like baths or reading doesn’t make it go away.
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.
the only solution is avoiding phones and ipads for at least 1-2 hours before bed.
Screens are now banned in the hour before bed
if I'm on my phone too late I obviously I have filters on my phone I have filters on my computer to take out the blue light but even with the Flicker and stuff it's just very stimulating
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.