OBESITY

Obesity is a medical condition in which excess body fat has accumulated to an extent that it may have a negative effect on health. Obesity is most commonly caused by a combination of excessive food intake, lack of physical activity, and genetic susceptibility. A few cases are caused primarily by genes, endocrine disorders, medications, or mental disorder. The view that obese people eat little yet gain weight due to a slow metabolism is not medically supported.On average, obese people have a greater energy expenditure than their normal counterparts due to the energy required to maintain an increased body mass.