Sleep - wikipedia, free encyclopedia, Sleep is a naturally recurring state of mind characterized by altered consciousness, relatively inhibited sensory activity, inhibition of nearly all voluntary muscles.
Brain basics: understanding sleep, Dreaming and rem sleep. we typically spend more than 2 hours each night dreaming. scientists do not know much about how or why we dream. sigmund freud, who.
Sleep deprivation - wikipedia, free encyclopedia, Generally, sleep deprivation may result in: aching muscles; confusion, memory lapses or loss; depression; development of false memory; hallucinations; hand tremor.
Sleep disorders center: types sleep disorders, symptoms, Sleep disorders include a range of problems -- from insomnia to narcolepsy -- and affect millions of americans. learn more about sleep disorders.
Sleep - Wikipedia, the free encyclopedia
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Sleep deprivation - wikipedia, free encyclopedia, Generally, sleep deprivation result : aching muscles; confusion, memory lapses loss; depression; development false memory; hallucinations; hand tremor.