People do exercise to keep healthy. It 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. There are two main types of exercise: aerobic and anaerobic.
Aerobic exercise works big muscles n you arms and legs. It makes your heart and lungs work harder to supply your muscular with oxygen. Running, Walking, jogging, and swimming are kinds of aerobic exercise. Regular aerobic exercise leads to a healthier heart. You should do 20 to 30 minutes of aerobic exercise at least three times a week. Aerobic exercise can help you lose weight. It can help you stay at a healthy weight. Aerobic exercise burns calories.
Aerobic exercise works just a few muscles at a time. It makes your muscular bigger and stronger. T does not work our heart or lungs. You can only do anaerobic exercise for short periods of time because the muscular you are using quickly get tired. It is a good idea to have a trainer or physical education teacher show you how to lift weight properly. It is important not to injure yourself when lifting weights. Start out with small weights. Try lifting heavier and heavier weights as your muscular get stronger.
Taken from: Be Smart Bahasa Inggris
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