According to Examiner.com, Sleep deprivation can severely alter behavior. Lack of sleep can become fatal. In a study of rats that were not allowed to sleep, it took only three weeks for them all to die. During periods of “quiet rest” the muscles of the body can rejuvenate, however, without sleep the brain is unable to rejuvenate.
There are four basic types of sleep deprivation; Insomnia, sleep apnea, restless leg syndrome (RLS), and narcolepsy. Some individuals are left sleep deprived from prolonged periods of awakeness associated to today’s demands.
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