Person experiences severe disturbances in eating behavior, such an extreme reduction of food intake or extreme overeating and feeling of extreme distress or concern about the body weight and shape. Starting with having just smaller amount of food or larger amount of food than usual, the intense urge to eat less or eat larger amount of food spirals out of control.

Two main types of eating disorder are there: Anorexia Nervosa and Bulimia Nervosa

The third type is Eating Disorder Not Otherwise Specified (EDNOS).

People with Anorexia Nervosa are relentlessly pursue to maintain thinness and remain anxious for gaining weight and getting distorted body image. They lose weight by dieting and doing exercises excessively or by self induced vomiting and misusing laxatives. Eating food and maintaining body weight becomes obsessions.

Bulimia Nervosa is , on the contrary, characterized by recurrent and frequent episodes of eating ,usually a large amounts of foods, and a feeling of lack of control over this eating habit. This habit of binge eating is followed by a type of behavior that compensates binge eating(e.g. vomiting, excessive use of laxatives , fasting and over exercises. Cognitive Behaviour Therapy is an effective method of treatment in both the cases in order to treat underlying psychopathology.