Abstract
The major eating disorders are anorexia nervosa and bulimia nervosa. Anorexia nervosa is characterized by peculiar attitudes toward eating and weight that lead to obsessive refusal to eat, profound weight loss, and, when the disorder occurs in girls, persistent amenorrhea. Bulimia refers to a behavior of gorging of food, typically followed by induced vomiting or purging. Bulimia is seen in many patients with anorexia nervosa, but it is the predominant clinical feature in bulimia nervosa. Anorexia nervosa is not a common illness, occurring in about 1% of the population, and the incidence of these disorders has increased in recent decades. Anorexia nervosa is fatal in 5%–10% of adult cases; however, half of patients recover, and many more improve as they age.
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