Narcolepsy is a sleep disorder that causes overwhelming and severe daytime sleepiness. Pathologic sleepiness is characterized by the fact that it occurs at inappropriate times and places. The daytime sleep attacks may occur with or without warning, and can occur repeatedly in a single day. Persons with narcolepsy often have fragmented nighttime sleep with frequent brief awakenings.
Narcolepsy is typically characterized by the following four symptoms with varying frequencies:
Less frequently persons have all four symptoms.
The following are some little known facts about narcolepsy:
Medically Reviewed by a Doctor on 8/14/2014
Selim R Benbadis, MD
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