chapter8-revised

chapter8-revised - Chapter 8 Eating and Sleep Disorders...

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Chapter 8 Eating and Sleep Disorders
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Eating Disorders: An Overview Two Major Types of DSM-IV-TR Eating Disorders Anorexia nervosa and bulimia nervosa Severe disruptions in eating behavior Extreme fear and apprehension about gaining weight Strong sociocultural origins – Westernized views
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Eating Disorders: An Overview (continued) Other Subtypes of DSM-IV-TR Eating Disorders Binge eating disorder Obesity – A Growing Epidemic
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Bulimia Nervosa: Overview and Defining Features Binge Eating – Hallmark of Bulimia Binge Eating excess amounts of food Eating is perceived as uncontrollable
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Bulimia Nervosa: Overview and Defining Features (continued) Compensatory Behaviors Purging Self-induced vomiting, diuretics, laxatives Some exercise excessively, whereas others fast
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Bulimia Nervosa: Overview and Defining Features (continued) DSM-IV-TR Subtypes of Bulimia Purging subtype – Most common subtype Nonpurging subtype – About one-third of bulimics
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Bulimia Nervosa: Associated Features Associated Medical Features Most are within 10% of target body weight Purging methods can result in severe medical problems Erosion of dental enamel, electrolyte imbalance Kidney failure, cardiac arrhythmia, seizures, intestinal problems, permanent colon damage
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Bulimia Nervosa: Associated Features (continued) Associated Psychological Features Most are over concerned with body shape Fear of gaining weight Most have comorbid psychological disorders
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Anorexia Nervosa: Overview and Defining Features Successful Weight Loss – Hallmark of Anorexia Defined as 15% below expected weight Intense fear of obesity and losing control over eating Anorexics show a relentless pursuit of thinness Often begins with dieting
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Anorexia Nervosa: Overview and Defining Features (continued) DSM-IV-TR Subtypes of Anorexia Restricting subtype – Limit caloric intake via diet and fasting Binge-eating-purging subtype – About 50% of anorexics
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Anorexia Nervosa: Overview and Defining Features (continued) Associated Features Most show marked disturbance in body
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chapter8-revised - Chapter 8 Eating and Sleep Disorders...

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