Narcolepsy is a rare sleep disorder. It is defined by uncontrollable episodes of falling asleep at any place or time. The episode includes a 10- or 15-minute sleep attack, in which the person may feel rested only briefly. This is followed by an uncomfortable feeling of sleepiness. These attacks may occur while driving, talking or working, and begin in adolescence or young adulthood and continue throughout life.
Causes of Narcolepsy
The cause of narcolepsy is unknown. It is sometimes encountered following brain infection or head injury.
Signs and Symptoms of Narcolepsy
Symptoms of narcolepsy include many different symptoms. Only about 10% of the people suffering from this disorder have all the symptoms listed. The definitive symptom that occurs are sleep, attacks that may occur at any time, up to 10 times a day. An attack leaves the person feeling refreshed, but another may rapidly reoccur. At the beginning of the attack or upon awakening, there may be vivid dreams, sounds or hallucinations. Temporary paralysis may occur when falling asleep or just before completely awakening. Sometimes there are episodes of momentary paralysis, which seen to be precipitated by highly emotional outburst. Irresistible drowsiness may be present throughout the day.
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Medical Content Last Updated on 07/12/2008
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