3 ms·
The Thomas Wehr experiment [1] in the 90s (which showed that people settle into 2 distinct periods of sleep throughout the night when they're removed from all a
by rrrrrrrrrrrryan 3y ago
The Thomas Wehr experiment [1] in the 90s (which showed that people settle into 2 distinct periods of sleep throughout the night when they're removed from all artificial light), as well as Roger Ekirch's [2] historical research (which documented the mentioning of "first sleep" and "second sleep" throughout many cultures in pre-industrial society).
[1] https://en.wikipedia.org/wiki/Thomas_Wehr#Research https://en.wikipedia.org/wiki/Thomas_Wehr#Research
[2] https://harpers.org/archive/2013/08/segmented-sleep/ https://harpers.org/archive/2013/08/segmented-sleep/
- kqr 3y agoThanks! It's hard to tell from a glance how realistic the Wehr experiment was in terms of simulating a workday, but I'll look into it! The historic research seems focused primarily on the biphasicity of sleep, but I'll see if I can find out what evidence there are for specific biphasic schedules.