ANS, autonomic nervous system-the part of the nervous system of vertebrates that controls involuntary actions of the smooth muscles and heart and glands.
Underweight: Your BMI is less than 18.5. Healthy weight: Your BMI is 18.5 to 24.9. Overweight: Your BMI is 25 to 29.9. Obese: Your BMI is 30 or higher. The chart below shows examples of body mass indexes. The figure at which your height corresponds with your weight is your body mass index. To find yours, consult the chart, or use WebMD's BMI calculator.
A BMI under 19 is underweight, 19 through 24 is the healthy weight range, 25 through 29 is in the overweight range, and a BMI of 30 and above is the obese range. For those who are overweight or obese, modest weight loss (e.g., 10 pounds) has health benefits, and the prevention of further weight gain is very important. Eating fewer calories while increasing physical activity are the keys to controlling body weight.