Aerobic exercise causes you to breathe more deeply and makes your heart work harder to pump blood. Aerobic exercise also raises your heart rate (which also burns calories). Examples of aerobic exercise include walking, jogging, running, swimming and bicycling. How much exercise do I need?
In general, if you haven’t been exercising, try to work up to 30 minutes, 4 to 6 times a week. Your doctor may make a different recommendation based on your health. If you can’t carry on a conversation while you exercise, you may be overdoing it. It is best to alternate exercise days with rest days to prevent injuries.