The peak age of the onset of anorexia nervosa is during the adolescence stage of an individual. Anorexia Nervosa refers to a psychological disorder where an individual has a distorted image of him/herself convincing the mind that the body is not proportioned. This disease triggers a person to choose to skip meals in a day or totally not consume any calories. It is common in adolescence as this is the stage of puberty where social/peers are the direct influence of self-image. The disease can be treated with a series of psychosis and it mostly affects women.
If left untreated the disease can lead to excessive starvation or worst death.