Circadian Rhythm Sleep Disorders Market Value Projected to Expand by 2013 to 2019
Sleep disorder is a deviation in the normal sleeping pattern. It can also be defined as difficulty related to sleeping that includes falling asleep at inappropriate time, excessive sleep and abnormal behavior associated with the sleep. Sleep disorders are classified into four categories namely, dyssomnias, parasomnias, proposed sleep disorder and medical disorder. Dyssomnia is the disturbance in quality, time and amount of sleep. It is further classified as intrinsic sleep disorder, circadian rhythm sleep disorder and extrinsic sleep disorder. Circadian...
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