PSY240H5 Chapter Notes - Chapter 10: Twin Study, Etiology, Basal Metabolic Rate
Document Summary
Bulimia and anorexia described for hundreds of years. 1960"s and 70"s, western societies became preoccupied w/ thin physiques for women: increase in prevalence of eating disorders. Sufferers dvp morbid fear of fatness, perceive themselves as fat, and reduce their food intake to the pt of emaciation. Inds suffering from anorexia have the impression that they are fat despite being very underweight. Reduction in total number of daily calories and avoidance of certain (hi-calorie) foods. Ritualistic eating (eating foods in a set order/cutting into more pieces to create the illusion of eating more) Excessive exercise (or restlessness) to maintain/ lose weight/thinness. Purging behaviours: not just throwing up, can use laxatives (anything to make food exit immediately, can induce dehydration. Dsm-5 diagnostic criteria: restriction of energy (calorie) intake relative to requirements, leading to a significantly. B. low body weight in the context of age, sex, developmental trajectory and physical health.
