Interactive Summaries

Chapter 9A: Spotlight on Obesity

Spotlight on Obesity: The Growing Epidemic

Worldwide, the number of overweight or obese people has increased markedly in recent years. The rising rates among are especially disturbing.

Factors in the Development of Obesity

At its simplest, obesity results from a chronic positive energy balance, meaning that energy intake regularly energy expenditure, and weight is . The reality is that obesity is a complex disorder that involves several regulatory mechanisms and the way in which these mechanisms interact and respond to biological factors, such as heredity, , and sex; social and environmental factors; and behavior and choices. Obesity tends to run in families. Sex, age, and social and environmental factors are related to weight. choices and behavioral factors also affect weight.

Childhood Overweight

Overweight children are more likely to have social and academic difficulties and experience the trauma associated with obesity in our culture. In addition, obese children are more likely to become obese adults, and obesity in adulthood is likely to be .

Health Risks of Overweight and Obesity

Obese people are at higher risk for , the leading cause of death in the US and Canada, and for stroke, , hypertension, , some forms of cancer, gallbladder and joint diseases, and psychosocial problems.

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