People exercise to keep healthy. They exercise to lose weight or to stay fit. They exercise to make their muscles bigger and stronger. Maybe you play soccer or some other sport for exercise. Getting exercise can be fun and can make you feel good.
Exercise is a big part of staying physically fit. People who are physically fit are alert and full of energy. Exercise can also help people handle stress. Exercise is especially good for children, teens, and older persons.
NOT ALL EXERCISE IS THE SAME
There are two main types of exercise: aerobic and anaerobic. Aerobic exercise works big muscles in your arms and legs. Aerobic exercise makes your muscles use oxygen faster than usual. It makes your heart and lungs work harder to supply your muscles with oxygen. Running, walking, jogging, and swimming are kinds of aerobic exercise.
Anaerobic exercise works just a few muscles at a time. Weightlifting is a kind of anaerobic exercise. Weightlifting and other kinds of anaerobic exercise make your muscles bigger and stronger. Anaerobic exercise does not require a lot of oxygen. It does not work your heart or lungs. You can only do anaerobic exercise for short periods of time because the muscles you’re using quickly get tired.
EXERCISE THAT HELPS THE HEART
Doctors say that regular aerobic exercise leads to a healthier heart. Jogging, walking, riding a bicycle, and other aerobic exercises lower the risk of heart disease. In one kind of heart disease, fatty stuff called plaque builds up in blood vessels going to the heart. Aerobic exercise helps prevent this buildup. Aerobic exercise also makes the heart and lungs stronger.
Doctors say you should do 20 to 30 minutes of aerobic exercise at least three times a week. You need to exercise hard enough to get your heart beating faster than normal. You can feel your heart beating. Use two fingers to feel a beat, or pulse, in your wrist or neck.
EXERCISE THAT INCREASES STRENGTH