bulimia vs. anorexia

Also called binge-purge syndrome. Also called bulimia nervosa. Psychiatry.,  a habitual disturbance in eating behavior mostly affecting young women of normal weight, characterized by frequent episodes of grossly excessive food intake followed by self-induced vomiting to avert weight gain.

Also called hyperphagia. Pathology.,  abnormally voracious appetite or unnaturally constant hunger.

Psychiatry.,  anorexia nervosa.

loss of appetite and inability to eat.