During the night! : Your sleep/wake cycle evolved along with your loss of a tail and walking upright on two feet... To optimize the probability of your survival to child bearing age. Don't take any of it for granted! the human brain functions best with 7-8 hours of sleep. Humans have traditionally capitalized on the hours of daylight to be awake and the night hours to allow the brain to rest ; restore. Sleep at nite!
Answered 11/9/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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