Is anorexia a functional or an organic disorder?

Anorexia nervosa is considered a *functional* disorder. It is characterized by an intense fear of gaining weight, an unhealthy desire to be thin, and a disturbance in the way a person perceives their body image. It can lead to severe malnutrition, dehydration, and a variety of health problems. The exact cause of anorexia is not fully understood, but it is thought to be a complex interplay of genetic, biological, psychological, and environmental factors.