font size

Definition of Narcolepsy

Narcolepsy: A neurological disorder that is marked by the recurrent, sudden, uncontrollable compulsion to sleep. Narcolepsy is often associated with cataplexy (a sudden loss of muscle tone and paralysis of voluntary muscles associated with a strong emotion), sleep paralysis (immobility of the body that occurs in the transition from sleep to wakefulness), hypnagogic hallucinations (presleep dreams), and automatic behaviors (such as doing something 'automatically' and not remembering afterward how one did it). The causes of narcolepsy are unknown. Narcolepsy is not a fatal disorder in itself, but it can lead to fatalities. For example, affected persons may fall asleep while driving. Also known as excessive daytime sleepiness, hypnolepsy, sleeping disease, paroxysmal sleep, and Gelineau syndrome.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=10471
Last Editorial Review: 3/19/2012

Drug Medical Dictionary of Terms by Letter

Top RxList Drug News

Sleep Disorders

Get tips for better sleep.

advertisement
advertisement
Use Pill Finder Find it Now See Interactions

Pill Identifier on RxList

  • quick, easy,
    pill identification

Find a Local Pharmacy

  • including 24 hour, pharmacies

Interaction Checker

  • Check potential drug interactions
Search the Medical Dictionary for Health Definitions & Medical Abbreviations

NIH talks about Ebola on WebMD