Correção de texto: Anorexia

Anorexia is an eating disorder that causes a loss of weight above the level that is considered helthy for you age and height. People with anorexia can have a big fear of putting on weight, even when they are in normal weight. They can do a misuse of diet and exercises, and also use other methods do get thin.
The exact cause of anorexia is still unkown, but is belived that biological, psychological and environmental factors may be involved in the possibles causes of this illness