I have changed a lot since I take up running. Before I started running, I seldom did exercise. As a result of, I often fell ill. Once I was very weak that I fell down when having a P.E.class. From now on, I decided to exercise to make me strong. I kept running every morning whenever the weather was like. After running for half year, I found that I seldom caught a cold and I was much healthy than before. So far, I’ve learned that exercise is extreme important. It not only improves my health but also make me feel more relaxed.