The word aerobic means with air, and air gives you oxygen. Aerobic exercise is any activity you can keep doing for a long time, like jogging, cycling, or swimming laps. During this kind of exercise your body uses oxygen to turn food into energy. Because the oxygen keeps coming with every breath, your muscles can keep working steadily for many minutes without running out of fuel.
⚡ DID YOU KNOW?
Aerobic activity is sometimes called cardio because it gives your heart and lungs a great workout at the same time.