Metabolic rate slows down significantly as you get older. Of course the older you get the less activity you engage in.With your present weight, you can determine your body mass index (BMI). BMI is a useful measure of overweight and obesity. It is calculated using your height and weight. BMI is usually the estimate of your body fat and a good gauge of your risk for diseases that occur with more body fat. It is known that the higher your BMI, the higher...