The Kleine-Levin syndrome is characterized by recurring attacks of morbid sleep, excessive eating, and mental disturbances lasting for a set period of time. Neither an organic factor nor a psychological disorder has been found to be causative in this syndrome.
Frank Y, Braham J, Cohen BE. The Kleine-Levin Syndrome: Case Report and Review of the Literature. Am J Dis Child. 1974;127(3):412–413. doi:10.1001/archpedi.1974.02110220110016
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