Is anorexia a disease of the brain where a person has little to no control or is it more of a social issue where a person can have a lot of control?

Can be all of this!: VEry difficult to anwer in this forum.Can be related to disease cauing anorexia (no appetite) Can be stress that causes a diminished appetite. Can be related to depression that causes it. It is NOT a disease of the brain and is not a "social issue" only either. It can be caused by a disease process or a psychological issue as depression or stress. Little hx provided.