Aerobic exercise means "exercise that gets you huffing and puffing and your heart beating faster!" When you do aerobic exercise, your heart and lungs have to work harder to get oxygen to your muscles. This is important because it helps make your muscles stronger so that they can do more work without getting tired. Examples of aerobic exercise include running, swimming, dancing, and playing tag. When you do aerobic exercise regularly, you feel better, have more energy, and can even prevent certain diseases like heart disease and diabetes. So, it's important to get your heart rate up and keep moving for a healthier body and mind!