Hypnolepsy
A neurological disorder marked by a sudden recurrent uncontrollable compulsion to sleep. Also known as narcolepsy. The disorder 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), what are called hypnagogic hallucinations (pre-sleep dreams) and automatic behaviors (such as doing something "automatically" and not remembering afterwards how one did it). 125,000 Americans are estimated to have narcolepsy. It strikes males and females and all races. Symptoms most commonly appear in a person’s teens and early twenties. The disease can vary in severity. Some persons with it have mild sleepiness or rare cataplexy (less than one episode per week). Other persons may have moderate sleepiness or infrequent cataplexy (less than one episode a day). Still other persons with narcolepsy may experience severe sleepiness or have severe cataplexy (with one or more episodes of cataplexy per day). The cause(s) of narcolepsy are unknown. It is not a fatal disorder in itself but it can lead to fatalities. For example, a narcoleptic may fall asleep while driving. Narcolepsy is usually treated with a medication to improve alertness and an anti-depressant that helps control cataplexy. The U.S. Food and Drug Administration (FDA) in 1998 approved Provigil (modafinil), a non-amphetamine drug for treating the excessive sleepiness of narcolepsy. Other names for this disorder include excessive daytime sleepiness (EDS), sleeping disease, paroxysmal sleep, and Gelineau syndrome.

Medical dictionary. 2011.

Look at other dictionaries:

  • hypnolepsy —    see narcolepsy and hallucinations …   Dictionary of Hallucinations

  • Disease, sleeping — A neurological disorder marked by a sudden recurrent uncontrollable compulsion to sleep. Also known as narcolepsy. The disorder is often associated with cataplexy (a sudden loss of muscle tone and paralysis of voluntary muscles associated with a… …   Medical dictionary

  • EDS (excessive daytime sleepiness) — A neurological disorder marked by a sudden recurrent uncontrollable compulsion to sleep. Also known as narcolepsy. It is often associated with cataplexy (a sudden loss of muscle tone and paralysis of voluntary muscles associated with a strong… …   Medical dictionary

  • Excessive daytime sleepiness — A neurological disorder in which there is a sudden recurrent uncontrollable compulsion to sleep. Excessive daytime sleepiness is also known as narcolepsy. The condition is often associated with: {{}}Cataplexy a sudden loss of muscle tone and… …   Medical dictionary

  • Gelineau syndrome — A neurological disorder marked by a sudden recurrent uncontrollable compulsion to sleep. Named for a French neurologist, JBE Gelineau (1859 1906). Also known as narcolepsy. The disorder is often associated with cataplexy (a sudden loss of muscle… …   Medical dictionary

  • Narcolepsy — A neurological disorder marked by a sudden recurrent 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… …   Medical dictionary

  • Sleep, paroxysmal — A neurological disorder marked by a sudden recurrent uncontrollable compulsion to sleep. Also known as narcolepsy. The disorder is often associated with cataplexy (a sudden loss of muscle tone and paralysis of voluntary muscles associated with a… …   Medical dictionary

  • Sleepiness, excessive daytime (EDS) — A neurological disorder marked by a sudden recurrent uncontrollable compulsion to sleep. Also known as narcolepsy. It is often associated with cataplexy (a sudden loss of muscle tone and paralysis of voluntary muscles associated with a strong… …   Medical dictionary

  • Sleeping disease — A neurological disorder marked by a sudden recurrent uncontrollable compulsion to sleep. Also known as narcolepsy. The disorder is often associated with cataplexy (a sudden loss of muscle tone and paralysis of voluntary muscles associated with a… …   Medical dictionary

  • Syndrome, Gelineau — A neurological disorder marked by a sudden recurrent uncontrollable compulsion to sleep. Named for a French neurologist, JBE Gelineau (1859 1906). Also known as narcolepsy. The disorder is often associated with cataplexy (a sudden loss of muscle… …   Medical dictionary

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