Consuming fewer calories and including less fat in your diet is necessary to shed pounds. Adding exercise increases the number of calories you burn so that you speed up your weight loss. Plus, you build muscle, which keeps your metabolism in high gear to burn calories more readily.
If you have any medical conditions, see your doctor, especially if you’re over 40 years old. Your physician can perform an exertion test, evaluate your overall health, and suggest forms of exercise that are safe for you.