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PSYB32H3 (1,174)
Chapter 10

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Department
Psychology
Course
PSYB32H3
Professor
Konstantine Zakzanis
Semester
Fall

Description
Chapter 10: Eating Disorders CLINICAL DESCRIPTION Purging disorder: form of bulimia that involves self-induced vomiting or laxative use at least once a week for a minimum of 6 months have levels of disturbed eating and associated forms of psychopathology that are comparable with other eating disorders high impulsivity individual eats so much on purpose unlike bulimia where they don’t want to eat Anorexia Nervosa  Anorexia (“loss of appetite”) is 3-4x more common in females than men  They may enjoy thinking about food, preparing meals for others to consume, and hoarding food they don’t eat, but they have an intense fear of becoming obese  Many reduce their weight by cycling, running, or constantly walking and pacing  When weight loss becomes severe their menstruation stops  As many as 6% of people die from causes related to it  Person refuses to maintain a normal body weight less than 85% of what is considered normal  Amenorrhea: loss of menstrual period  Typically begins in the early-middle teenage years  Physical changes in anorexia:  Blood pressure falls  Heart rate slows  Kidney and gastrointestinal problems develop  Bone mass declines  Skin dries out  Nails become brittle  Hormone levels change  Mild anemia may occur  Some lose hair from scalp  May develop laguna (fine, soft hair on their bodies)  Levels of electrolytes (potassium and sodium) are altered  Brain size declines  About 70% of patients recover, recovery takes 6 or 7 years  Death is often a result Bulimia Nervosa  Usually gorge themselves with food (especially desserts and snack foods) usually in the afternoon or evenings  followed by self-induced vomiting or the use of laxatives accompanied by the feelings of depression and guilt  19% of bulimics under eat, 37% eat a normal amount, and 44% overeat  It is not fatal, but it can result in poor health outcomes  Binging/purging occur for at least twice a week for 3 months  Physical side effects:  Potassium depletion  Heavy use of laxatives induces diarrhea, which leads to changes in electrolytes and cause irregularities in the heartbeat  Recurrent vomiting may lead to tearing of tissue in the stomach and throat  loss of dental enamel as stomach acids eat away at the teeth making the ragged  salivary glands may become swollen Reasons for engaging in self harm: Interpersonal reasons To suppress an unwanted social stimulus To suppress negative emotion To generate feelings ETIOLOGY OF EATING DISORDERS Anorexia and bulimia have a
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