Start Slow

If you're not active at all or have a medical problem, start your program with short sessions (5 to 10 minutes) of physical activity and build up to your goal. Before you start your activity, be sure to warm up for 5 to 10 minutes. Use the right equipment-whether it's walking shoes, running shoes, or knee pads-make sure it's in good condition and right for your skill level. Drink water before, during, and after exercise. At the end of your physical activity, cool down by decreasing the intensity of your activity so your heartbeat is normal. Be sure to stretch. If your chest feels tight or painful, or you feel faint or have trouble breathing at any time, stop the activity right away and talk to your health care provider.