Exercise can improve the metabolic rate of human body, but the effect is only two days at most, so the most important thing is to keep exercising. If you can't do it at least once a day, even walking may be a great burden for an extremely obese person. Therefore, when choosing the type of exercise, we should do what we can, or give priority to physical load, and gradually increase the amount of exercise to avoid the burden of the heart and lungs.