Why Exercise Is Cool
You may know that your heart is a muscle. It works hard, pumping blood every day of your life. You can help this important muscle get stronger by doing aerobic (say: air-o-bik) exercise.
Aerobic means "with air," so aerobic exercise is a kind of activity that requires oxygen. When you breathe, you take in oxygen, and, if you're doing aerobic exercise, you may notice you're breathing faster than normal. Aerobic activity can get your heart pumping, make you sweaty, and quicken your breathing.
When you give your heart this kind of workout on a regular basis, your heart will get even better at its main job — delivering oxygen (in the form of oxygen-carrying blood cells) to all parts of your body.
So you want to do some aerobic exercise right now? Try swimming, basketball, ice or roller hockey, jogging (or walking quickly), inline skating, soccer, cross-country skiing, biking, or rowing. And don't forget that skipping, jumping rope, and playing hopscotch are aerobic activities, too!
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