Finally: The Mysteries Of Sleep
summary
Claims that screen and indoor lighting push circadian clocks late by giving too little daytime light and too much nighttime light, cites laboratory measures showing many device screens register about half as bright as daylight for the clock and reports a camping experiment that shifts wake time two hours earlier on average. Describes f.lux as a practical intervention for screen light, notes ~85% use alarm clocks indicating chronic sleep deficit, criticizes unvalidated wearables and proposes a large sleep databank plus later school start times before 10 a.m.
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chapters (8)
- 0:00Introduction to sleep
- 1:17Evolution and sleep habits
- 5:15The role of light and biology
- 7:39Research on sleep cycles
- 10:21Technology and sleep research
- 13:16Societal impact on sleep
- 16:14Seasonality and health
- 19:22Future of sleep data
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