Roger ekirch | department history, •segmented sleep in preindustrial societies," sleep, march 2016, 715-716. • arianna huffington, "my q and a with roger ekirch on the way we sleep, and how it's.
Lying awake 3am? biphasic, Poor sleep and insomnia can make you less effective, but it’s still not necessary to stay in bed for eight hours if you’re suffering from insomnia, the best thing.
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Sleep deprivation - wikipedia, free encyclopedia, External links "how much sleep do you really need?", u.s. national sleep foundation; national sleep foundation 2005 sleep in america poll; why do humans and many.
Roger Ekirch | Department of History
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