Sleep, why do people sleep at all? Why can't we just stay awake?
Some biologist suggest that sleep provides the opportunity to conduct
self-repair and purge the body of it's waste that has built up during
the day's activity. Nevertheless, the body is capable of repairing
itself and disposing of wastes during waking hours, so sleep in a way
really isn't necessary for routine maintenance (e.g., urinating, etc.).
Dr. Quentin Regestein, lead sleep and sleep disorders researcher at
Harvard Medical School also believed that sleep kept our distant ancestors
out of harms way during the night wh…
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