Idiopathic hypersomnia is excessive sleeping (hypersomnia) without obvious cause. It is different from narcolepsy in that idiopathic hypersomnia does not involve suddenly falling asleep or losing muscle control associated with strong emotions (cataplexy).
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Reviewer Info: Allen J. Blaivas, DO, Pulmonary, Critical Care, and Sleep Medicine, Department of Veteran Affairs, VA New Jersey Health Care System, East Orange, NJ. Review provided by VeriMed Healthcare Network.; ADAM Health Illustrated Encyclopedia, 08/03/2007 |