“Eating disorder” is a general term for persistent, abnormal eating habits and behaviors that negatively affect your life and overall health. The most common of these disorders are binge eating disorder, anorexia nervosa, and bulimia nervosa. These medical conditions differ from more everyday forms of disordered eating, such as crash dieting or stress-eating. Eating disorders often develop in the teen and young adult years. They can have a dramatic effect on the heart, digestive system, bones, mouth, and more.