My hobby is doing sports. I used to be a little weak , but now I’m strong because of doing sports.
So I become interested in different kinds of sports, such as running, swimming and playing ball games and I keep exercising at least half an hour a day. I’m getting healthier and healthier.
Whenever I feel tired or stressed out, I will do sports. That can make me relax and feel happy. Then I can study better. Doing sports is really a great hobby.