A person with anorexia nervosa, often called anorexia, has an intense fear of gaining weight. Someone with anorexia thinks about food a lot and limits the food she or he eats, even though she or he is too thin. Anorexia is more than just a problem with food. It's a way of using food or starving oneself to feel more in control of life and to ease tension, anger, and anxiety. Most people with anorexia are female.
Sources
U.S. Department of Health and Human Services - womenshealth.gov
