Eating disorder= not a healthy body mass, making an effort to make sure your weight is at an abnormal level. Abnormality w/ the amount of calories that you are consuming. The two most common forms of eating disorders are. An intense and pathological fear of becoming overweight. A pursuit of thinness that is relentless and sometimes deadly: person becomes consumed by what is their ideal weight. A refusal to maintain a normal weight. Restricting type: avoid eating infront of others, restricting food calories, eating really slow. Binge-eating/purging type: consume excessive amounts of food, then purge, 30-50% of individuals who start w/ restrictive move to binge/purge type, dsm-iv. Females: requires that postmenarcheal females stop menstruating: one major characteristic of anorexia is that they stop menstruating. Males: diminished sexual appetite and low testosterone levels: use urine test to measure level, dsm limitations. Transition from restrictive to binge/purging = dsm is not as useful in this.