Narcolepsy
What is Narcolepsy?
Narcolepsy is a chronic neurological disorder caused by the brain's inability to regulate sleep-wake cycles normally. At various times throughout the day, people with narcolepsy experience irresistable bouts of sleep. If the urge becomes overwhelming, individuals will fall asleep for periods lasting from a few seconds to several minutes. In rare cases, some people may remain asleep for an hour or longer. In addition to excessive daytime sleepiness (EDS), three other major symptoms frequently characterize narcolepsy: cataplexy, or the sudden loss of voluntary muscle tone; vivid hallucinations during sleep onset or upon awakening; and brief episodes of total paralysis at the beginning or end of sleep. Narcolepsy is not definitively diagnosed in most patients until 10 to 15 years after the first symptoms appear. The cause of narcolepsy remains unknown. It is likely that narcolepsy involves multiple factors interacting to cause neurological dysfunction and sleep disturbances.
Is there any treatment?
What is the prognosis?
None of the currently available medications enables people with narcolepsy to consistently maintain a fully normal state of alertness. But EDS and cataplexy, the most disabling symptoms of the disorder, can be controlled in most patients with drug treatment. Often the treatment regimen is modified as symptoms change. Whatever the age of onset, patients find that the symptoms tend to get worse over the two to three decades after the first symptoms appear. Many older patients find that some daytime symptoms decrease in severity after age 60.
What research is being done?
The National Institute of Neurological Disorders and Stroke (NINDS) and other institutes of the National Institutes of Health (NIH) conduct research into narcolepsy and other sleep disorders in laboratories at the NIH and also support additional research through grants to major medical institutions across the country. The NINDS continues to support investigations into the basic biology of sleep, including the brain mechanisms involved in generating and regulating sleep. Within the National Heart, Lung, and Blood Institute, also a component of the NIH, the National Center on Sleep Disorders Research (NCSDR) coordinates Federal government sleep research activities and shares information with private and nonprofit groups.
NIH Patient Recruitment for Narcolepsy Clinical Trials
Organizations
| Narcolepsy Network, Inc. 110 Ripple Lane North Kingstown, RI 02852 narnet@narcolepsynetwork.org http://www.narcolepsynetwork.org Tel: 888-292-6522 401-667-2523 Fax: 401-633-6567 |
National Sleep Foundation 1522 K Street NW Suite 500 Washington, DC 20005 nsf@sleepfoundation.org http://www.sleepfoundation.org Tel: 202-347-3471 Fax: 202-347-3472 |
| National Heart, Lung, and Blood Institute (NHBLI) National Institutes of Health, DHHS 31 Center Drive, Rm. 4A21 MSC 2480 Bethesda, MD 20892-2480 http://www.nhlbi.nih.gov Tel: 301-592-8573/240-629-3255 (TTY) Recorded Info: 800-575-WELL (-9355) |
- Narcolepsy Fact Sheet
An information booklet on Narcolepsy compiled by the National Institute of Neurological Disorders and Stroke (NINDS).
Publicaciones en Español
http://www.ninds.nih.gov/disorders/narcolepsy/narcolepsy.htm





