Anorexia nervosa


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Definition

Anorexia nervosa is an eating disorder characterized by refusal to stay at even the minimum body weight considered normal for the person's age and height. Other symptoms of the disorder include an intense fear of weight gain and distorted body image. Inadequate eating or excessive exercising results in severe weight loss (see also bulimia and intentional weight loss).


Alternative Names

Eating disorder - anorexia


Causes, incidence, and risk factors

The exact cause of anorexia nervosa is not known, but social attitudes towards body appearance, as well as family factors, are believed to play a role in its development. The condition usually occurs in adolescence or young adulthood. It is more common in women, affecting 1-2% of the female population and only 0.1-0.2% of males.



Anorexia nervosa is seen mainly in Caucasian women who are high academic achievers and have a goal-oriented family or personality. Some experts have suggested that conflicts within a family may contribute to this eating disorder. It is thought that anorexia is a way for a child to draw attention away from marital problems, for example, and bring the family back together.

Other psychologists have suggested that anorexia may be an attempt by young women to gain control and separate from their mothers. The causes, however, are still not well understood.



Review Date: 07/25/2006
Reviewed By: Paul Ballas, D.O., Department of Psychiatry, Thomas Jefferson University Hospital, Philadelphia, PA. Review provided by VeriMed Healthcare Network.

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