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.
if I've got the best blue light filter in the world on my phone but I'm doom scrolling social media and getting lit up on email that's way worse for me than if I've got my phone on maximum light and I'm like watching YouTube videos of F1 cars and driving around having fun
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.
what I'm doing on my phone matters more than how how bright my phone is
in other words if I've got the best blue light filter in the world on my phone but I'm doom scrolling social media and getting lit up on email that's way worse for me than if I've got my phone on maximum light and I'm like watching YouTube videos of F1 cars and driving around having fun like it's a totally different experience
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.