In the United States, 66 percent of adults are categorized as either overweight or obese a number is three times what it was in 1980. Elevated body mass index, an estimate of body fatness based on height and weight, has long been considered a risk factor for coronary heart disease, stroke, and cancers of the large intestine, kidney, uterus, and breast in postmenopausal women. Furthermore, 20 percent of adults aged 20 years or older have metabolic syndrome, defined by a combination of obesity, hypertension, dyslipidemia, and insulin resistance.
In the United States, 66 percent of adults are categorized as either overweight or obese a number is three times what it was in 1980. Elevated body mass index, an estimate of body fatness based on height and weight, has long been considered a risk factor for coronary heart disease, stroke, and cancers of the large intestine, kidney, uterus, and breast in postmenopausal women. Furthermore, 20 percent of adults aged 20 years or older have metabolic syndrome, defined by a combination of obesity, hypertension, dyslipidemia, and insulin resistance.