Next to weight control and medical treatment, exercise is the most important thing you can do to take control over diabetes. Exercise decreases body fat and promotes weight loss — but even if you don't lose weight as a result, exercise will improve blood-sugar control and your body's response to insulin and even help prevent heart disease. Aim for 30 minutes of activity, five days per week. Studies show that all levels of exercise are beneficial, from moderate-intensity walking to high-intensity resistance training with weights. The key is to find something you enjoy doing and will stick with — whether it's walking, swimming, cycling, or dancing — and then get moving!