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Anorexia Nervosa is an eating disorder portrayed by food restriction, rational fear of gaining body weight, and body self-perception distortion. Anorexia Nervosa typically involves loss of excess body weight and is mainly common in females than in males (Garrett, 2008). Because of fear of gaining more body weight, people with Anorexia Nervosa disorder restrict the type and amount of food they eat. This food intake restriction cause hormonal and metabolic disorders. Outside medical literature, people frequently use the term Anorexia and Nervosa interchangeably; nevertheless, Anorexia is a medical term that simply means lack of appetite, although, patient with such disorder do not, actually, lose their appetite (Fonagy, 2005). Patients with this disorder may experience headache, lack of energy, drowsiness, and dizziness.
Anorexia Nervosa associates with inappropriate eating habits, losing body weight, obsession to have a slender body figure, and fear of increasing body weight mostly with females. Anorexia Nervosa often couples with self-image distortion, which is maintained by a range of cognitive biases that change how the patient evaluates and thinks about his or her body, food, and eating (Hoek, 2008). People suffering from Anorexia Nervosa often term themselves as “too fat” even when they are extremely underweight. They may perform repetitive measuring, weighing, mirror gazing, and other obsessive practices to be sure that they remain thin. This practice commonly refers to “body checking” (First & Tasman, 2011).