The advantage of the glasses is they block short wavelength light which is the most potent form of light for suppressing melatonin.
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.
The advantage of the glasses is they block short wavelength light which is the most potent form of light for suppressing melatonin.
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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.
And light really blocks melatonin level.
Bright Lights viewed for 15 seconds or more between the hours of 10: p.m and 4:00 a.m. can dramatically quash melatonin levels melatonin being the hormone that's involved in feeling sleepy and falling asleep
Blue light delays melatonin.
it causes something called phase shifting um if you continually expose yourself to blue light then put your blue light glasses on or go into a room with with red light which can mean that your bedtime will gradually get later or you will struggle to fall asleep for a few minutes a day and then over time you can then you know really disrupt your cicada rhythm but it's not going to be instant
what wouldn't just shown is that it happens for about 20 minutes so if you're wearing blue light glasses you take them off and expose yourself to artificial blue light from the fridge say or from your tv or your house lights you're going to put back the production of your melatonin curve for that evening back by about 20 minutes but within 20 minutes time you'll be fully secreting and producing the optimal amounts of melatonin again if you remove the source of blue light
I know that that light yes while it's bright if it's brief I'm not going to worry about it too much
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.