It is estimated that 61% of Americans are now overweight. Obesity is shown to be linked to many serious health problems. A measurement for obesity is Body Mass Index (BMI).
Find your target heart rate: heart rate training not only measures the intensity of your aerobic exercise, but also makes working out more enjoyable and less tiring.
Get the facts on everything from low-carb diets to banishing a beer belly in our Nutrition Resource Center.
Listen to recorded fitness information in our AudioLibrary.
