This document discusses eating disorders such as anorexia nervosa and bulimia nervosa. It outlines some of the common signs and symptoms, including malnutrition, irregular periods, hair loss, distorted body image, obsessive behaviors around food, weight, and calories. Purging behaviors are also discussed as well as potential long term health consequences like irregular heartbeats, kidney damage, and even death. Treatment options mentioned include antidepressants, family therapy, and cognitive behavioral therapy.