I don't think exercise is the only way to improve immunity. The following methods can improve immunity: 1. In addition to strengthening exercise, increase sunlight every day. Sunlight irradiation can transform vitamin D in skin into active vitamin D, and promote the absorption and utilization of calcium. 2. Aerobic exercise, running or swimming. , can improve heart and lung function, improve blood sugar and blood lipid metabolism, reduce blood lipid level and enhance human immunity. 3. Pay attention to balanced nutrition and supplement high-quality fruits and vegetables, such as strawberries and blueberries, which can enhance human immune function and supplement high-quality protein. High-quality protein can promote the synthesis of antibodies, and high-quality protein comes from sea cucumber, milk, eggs, tofu and other foods. High-quality protein can make muscles more developed and increase the synthesis of antibodies. These are all ways to improve the body's immunity.