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Chapter 9

PSYC 168 Chapter 9: Ch. 9: Eating Disorders- BOOK

Course Code
PSYC 168
Dani L Binegar

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Ch. 9: Eating Disorders
Anorexia Nervosa
- Restricting-type anorexia nervosa: Cutting out snacks and sweet until they eliminate all
- Binge-eating/purging-type anorexia nervosa
- 90-95% of occurrences are in females
- Peak onset: 14-20 years-old
- 2-6% of those affected die from starvation or suicide
- The Clinical Picture
- Fear of being overweight
- Preoccupied with food - many say their dreams are about food and spend a great
deal of time reading about food and planning their meals
- Distorted self-view
- Usually associated with depression, anxiety, low self-esteem, insomnia, or other
sleep disturbances, substance abuse, obsessive-compulsive patterns
- Tend to be perfectionists
- Medical Problems
- Amenorrhea: Absence of menstrual cycle
- Low body temperature, low BP, body swelling, reduced bone mineral density, slowed
- Loss of hair, brittleness of nails, lanugo
Bulimia Nervosa
- Binge episode takes place over a limited number of time, usually about two hours
- Compensatory behaviors
- Also 90-95% of those affected are female
- 15-20 years-old (onset)
- 25-50% of students report experimenting with these behaviors
- 5% of women in Western countries
- Higher rate for college students
- Binges
- Between 1-30 episodes per week
- Binge eaters consume an average of 3,400 cal per episode (some as many as
10,000 cal)
- Binge is usually felt like a relief, tension is released. However, this feeling is usually
followed by extreme guilt
- Compensatory Behaviors
- Vomiting fails to block half of the cal consumed
- Laxatives and diuretics also fail to block many of the cal consumed
- Bulimia Nervosa Versus Anorexia Nervosa
- This with bulimia tend to be concerned with the approval of others, being attractive
to others, and having intimate relationships
- With bulimia- tend to be more sexually active and experienced
- About 1/3 of those with bulimia have characteristics that seem like personality
disorder or borderline personality disorder
- 1/2 of women with bulimia experience amenorrhea compared to almost all women
with anorexia
- Women with bulimia have dental consequences
- Kidney, weakness, potassium deļ¬ciencies, heart damage, intestinal disorders
Binge-Eating Disorder
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