Gym is a place for fitness, rehabilitation and exercise. Fitness exercise can improve human metabolism, promote bone growth, improve cardiopulmonary function and increase vital capacity. People who exercise regularly can strengthen the regulation of the nervous system and have more agile and flexible skills. In addition, physical exercise can burn fat and increase muscle, so teenagers can lose weight and build a good figure by insisting on physical exercise. Fitness exercise can also bring people a sense of pleasure, relieve tension and reduce the pressure brought by study. Many people are naturally weak or prone to illness due to physical reasons, and you will find that strong people seldom get sick, precisely because they enhance their resistance and their ability to fight diseases through exercise. For example, in the recent COVID-19 epidemic, those athletes can only recover through training after being infected with the virus, but it is very difficult for us ordinary people to carry it through. So fitness can greatly improve our physical fitness.