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.
Body Mass Index (BMI) is calculated from a person's weight and height, and is a good indicator of body fatness. A normal BMI ranges from 18.5 to 24.9. A BMI of 25 to 29.9 is considered overweight, and anything over 30 is obese, meaning, the average American male over the age of 30 is overweight.