is an eating disorder in which persistent overconcern with body weight and shape leads to repeated episodes of binging (consuming large amounts of food in a short time) associated with induced vomiting, use of laxatives, fasting, and/or excessive exercise to control weight. was classified as a distinct disorder by the American Psychiatric Association in 1980; the name was changed to nervosa in 1987. Sometimes bulimic behavior is observed in cases of anorexia nervosa, or abnormal dieting, but in itself does not result in severe weight ....