| Term | Definition |
|---|
| glucose | the form of sugar that circulates in the blood and provides the major source of energy for body tissues. When its level is low, we feel hunger. |
| set point | the point at which an individual's "weight thermostat" is supposedly set. When the body falls below this weight, an increase in hunger and a lowered metabolic rate may act to restore the lost weight. |
| basal metabolic rate | the body's resting rate of energy expenditure. |
| anorexia nervosa | an eating disorder in which a normal-weight person (usually an adolescent female) diets and becomes significantly (15 percent or more) underweight; yet; still feeling fat, continues to starve. |
| bulimia nervosa | an eating disorder characterized by episodes of overeating, usually of high-calorie foods, followed by vomiting, laxative use, fasting, or excessive exercise. |
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