What is anorexia nervosa?
People with anorexia nervosa avoid eating and lose a lot of weight. They often feel or think they look fat, even when they are very thin. They may use other ways of staying thin, such as taking laxatives and exercising too much.
To avoid their anorexia being spotted by others they often hide food or follow very complicated plans to avoid eating and wear clothes that make them look heavier. Anorexia sufferers can become very weak and, without special help, some may even die.