An explanation of anaerobic versus aerobic exercise.
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Exercise is not only fun, it is also good for your body, mind, and overall well-being. Kids who exercise on a regular basis often do better in school, sleep better, don't feel as tired, are less likely to get hurt while exercising, and are stronger than less active children. Exercise also relieves stress and helps promote good behavior.

There are two types of exercise, aerobic and anaerobic. When you do an aerobic exercise, such as walking, running, swimming, inline skating, jumping rope, playing soccer, dancing, bicycling, or playing hockey, you increase your heart rate and the flow of oxygen-rich blood to the muscles. Aerobic exercise builds endurance and burns fat and calories. Doctors recommend that people do 30 minutes of aerobic exercise every day. When you do an anaerobic exercise, such as weight-lifting or push-ups, which involve short bursts of exertion, you build strength and muscle mass.

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