Mark is a 16-year-old student. He has a very
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life now. However, one year ago, he was not so fit. From Monday to Friday, he studied every day but
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did any sports. He often used the Internet. Although his parents asked him to exercise, he never did. He sometimes helped his mother with housework, but
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once a week. On weekends, he liked
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TV. Then his bad result came, he became fat and had
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friends. One day, the doctor in his school talked with him. He told Mark to do more sports because it was good for his body and mind. From then on, Marked decided to change his habits. Now he does sports more often than before. Doing exercise helps him become healthy and confident. Now he also has more friends.