brain mechanisms of eating, thirst, and hunger

brain mechanisms of eating, thirst, and hunger
First, describe the major brain mechanisms of eating, thirst, and hunger. Second, choose an eating disorder (anorexia nervosa, bulimia nervosa, or binge-eating) and present a case describing the person (age, gender, student/job status) and the symptoms and behaviors he/she is exhibiting. Then explain how he/she ignores the cues his/her body is giving to maintain homeostasis.