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Sleep why do people sleep at all Why cant we just stay awake Some biologist suggest that sleep provides the opportunity to conduct self-repair and purge the body of its waste that has built up during the days activity Nevertheless the body is capable of repairing itself and disposing of wastes during waking hours so sleep in a way really isnt necessary for routine maintenance eg 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 when they could not see as well as their night roaming predators Sleep is regulated by a connected series of structures in the deep midline areas and along other way stations that extend through the central axis of the brain these structures relay information about things that affect sleep In Dr Regestein notes he spoke of experiments that were performed by researchers The researchers he spoke of would destroy specific brain structures of a lab animal and then note how the animal slept For instances in one lab animal the researcher cut through the axis of the brain at one level which would prevented the animal from awakening showing that brain structures below the level of the cut were responsible for awakening the lab animal The American Sleep Disorders Association ASDA Association for the Psychophysiological Study of Sleep APSS Association of Sleep Disorder Centers ASDC and the American Psychiatric Association APA has studied sleep and sleep disorders since the early 1970s Out of all the sleep disorders currently being studied sleep apnea has gain world wide attention affecting over 15 million people Apnea derived from the Greek word want to breath Sleep Apnea cessation of air flow at the mouth for greater than 10 seconds can reflect 1 loss of central nervous system drive to maintain ventilation 2 mechanical upper airway obstruction or combinations of both The second
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