Kleine-Levin Syndrome

National Organization for Rare Disorders, Inc.

Important
It is possible that the main title of the report Kleine-Levin Syndrome is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.

Synonyms

  • Kleine-Levin Hibernation Syndrome
  • Familial Hibernation Syndrome
  • Periodic Somnolence and Morbid Hunger

Disorder Subdivisions

  • None

General Discussion

Kleine-Levin syndrome is a rare disorder characterized by the need for excessive amounts of sleep (hypersomnolence), (i.e., up to 20 hours a day); excessive food intake (compulsive hyperphagia); and behavioral changes such as an abnormally uninhibited sexual drive. The disorder primarily affects adolescent males. When awake, affected individuals may exhibit irritability, lack of energy (lethargy), and/or lack of emotions (apathy). They may also appear confused (disoriented) and experience hallucinations. Symptoms of Kleine-Levin syndrome are cyclical. An affected individual may go for weeks or months without experiencing symptoms. When present, symptoms may persist for days to weeks. In some cases, the symptoms associated with Kleine-Levin syndrome eventually disappear with advancing age. However, episodes may recur later during life.

The exact cause of Kleine-Levin syndrome is not known. However, researchers believe that in some cases, hereditary factors may cause some individuals to have a genetic predisposition to developing the disorder. It is thought that symptoms of Kleine-Levin syndrome may be related to malfunction of the portion of the brain that helps to regulate functions such as sleep, appetite, and body temperature (hypothalamus). Some researchers speculate that Kleine-Levin syndrome may be an autoimmune disorder.

Resources

National Sleep Foundation
1522 K Street
Suite 500
Washington, D.C. 20005
Tel: (202)347-3471
Fax: (202)347-3472
Email: nsf@sleepfoundation.org
Internet: http://www.sleepfoundation.org

American Sleep Disorders Association
1610 14th Street NW
Suite 300
Rochester, MN 55901
Tel: (507)287-6006
Fax: (507)287-6008
Email: asda@millcomm.com

National Mental Health Consumers' Self-Help Clearinghouse
1211 Chestnut Street
Suite 1207
Philadelphia, PA 19107-6312
USA
Tel: (215)751-1810
Fax: (215)636-6312
Tel: (800)553-4539
Email: info@mhselfhelp.org
Internet: http://www.mhselfhelp.org

National Mental Health Association
2000 North Beauregard Street
6th Floor
Alexandria, VA 22311
USA
Tel: (703)684-7722
Fax: (703)684-5968
Tel: (800)969-6642
TDD: (800)433-5959
Email: infoctr@nmha.org
Internet: http://www.nmha.org

NIH/National Institute of Mental Health
6001 Executive Blvd
Rm 8184, MSC 9663
Rockville, MD 20892-9663
Tel: (301)443-4513
Email: nimhinfo@nih.gov
Internet: http://www.nimh.nih.gov/

National Institute of Neurological Disorders and Stroke (NINDS)
P.O. Box 5801
Bethesda, MD 20824
Tel: (301)496-5751
Fax: (301)402-2186
Tel: (800)352-9424
TDD: (301)468-5981
Email: me20t@nih.gov
Internet: http://www.ninds.nih.gov/

MUMS National Parent-to-Parent Network
150 Custer Court
Green Bay, WI 54301-1243
USA
Tel: (920)336-5333
Fax: (920)339-0995
Tel: (877)336-5333
Email: mums@netnet.net
Internet: http://www.netnet.net/mums/

Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg, MD 20898-8126
Tel: (301)251-4925
Fax: (301)251-4911
Tel: (888)205-2311
TDD: (888)205-3223
Email: ordr@od.nih.gov
Internet: http://rarediseases.info.nih.gov/Default.aspx

Kleine-Levin Syndrome Foundation
PO Box 5382
San Jose, CA 95150-5382
Tel: (408)265-1099
Fax: (408)269-2131
Email: facts@klsfoundation.org
Internet: http://www.klsfoundation.org

For a Complete Report

For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders, Inc. ® (NORD). A copy of the complete report can be obtained for a small fee by visiting the NORD website. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational treatments (if available), and references from medical literature. For a full-text version of this topic, see http://www.rarediseases.org/search/rdblist.html

related physicians

related services

Bon Secours International| Sisters of Bon Secours USA| Bon Secours Health System

This information does not replace the advice of a doctor. Healthwise disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Privacy Policy. How this information was developed to help you make better health decisions.