Fitness can speed up blood circulation and make blood flow more smooth. This helps to transport metabolic waste and harmful substances produced in various parts of the body to excretory organs such as the liver, kidneys and intestines, thus speeding up their elimination. It can also stimulate intestinal peristalsis, promote the digestion and absorption of food, and accelerate the excretion of feces. In addition, exercise can also enhance the function of the kidneys and promote the discharge of urine, which further accelerates the excretion of harmful substances. In addition, exercise can speed up the body's metabolic process, so that the body produces more energy and nutrients, while producing less waste and harmful substances. This helps to reduce the burden on the body and improve the body's immunity. Therefore, exercise has a positive effect on detoxifying. However, exercise is not a panacea detoxifying method, but also need to combine diet adjustment, maintain good living habits and work and rest rules and other methods.