There is nothing to say that fitness can change anyone. People who exercise will be healthier anyway. Still better than ordinary people. When you do well in all aspects, you naturally have a positive attitude, so you will find more opportunities. When an opportunity comes, your life may change a lot. This is everything that fitness can change, no matter how big or small, you need your own efforts. 1 can control weight gain. Stick to fitness for a long time, you will sweat and consume calories during exercise. The more you exercise, the more you sweat and the more calories you burn, the easier it is for you to control your weight gain. 2. Exercise can enhance heart and lung function. Regular exercise can help the whole cardiovascular system, the blood circulation of the heart and blood vessels in the body, make them work more effectively, thus strengthening the heart and lungs and making our bodies healthier. 3. Regular physical exercise can promote better sleep. Many people have poor sleep and even insomnia, which will affect their attention during the day. When you exercise regularly, it can help you fall asleep faster and sleep deeper and more soundly.