Insomnia, or sleeplessness, is a sleep disorder in which there is an inability to fall asleep or to stay asleep as long as desired.[1][2] While the term is sometimes used to describe a disorder demonstrated by polysomnographic evidence of disturbed sleep, this sleep disorder is often practically defined as a positive response to either of two questions: Do you experience difficulty sleeping? or Do you have difficulty falling or staying asleep?[2]
Posted on: Wed, 19 Mar 2014 17:02:35 +0000
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