Mrs. Wang is forty years old. she was too fat. She often felt tired even when she went upstairs. she had to see a doctor. The doctor looked her over and told her there was nothing wrong with her. The doctor told her to do more sports and drink enough water every day. From then on Mrs. Wang kept doing sports every day. She gets much thinner and healthier. She doesn't feel tired at all. Doing sports is good for our health. We should do enough sports to keep healthy. That's all, thank you.