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Sleep, “sleep shall neither night nor day
Hang upon his pent-house” -…
Sleep
Video 3
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Video 3
completely immobilized,cant talk like a nightmare
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The dangers and needs that animals face do not disappear at bedtime. That is why some birds and mammals have an asymmetrical sleep in which some parts of their brain sleep and other areas are more active. This happens in humans as well.
The vertebrate brain has two hemispheres: right and left. Brain activity is usually even on both sides during sleep. During asymmetrical sleep one hemisphere can sleep perfectly while the other cannot.
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Video 2
Sleep deprivation is short term.Some long term,respiratory disorders can overpower fatigue can lead to stress.
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