Exercise is to achieve the purpose of strengthening the body and prolonging life through exercise. When you exercise, you must master the amount of exercise. If it is too small, it will not achieve the purpose of exercise. If it is too large, it will exceed the endurance limit of the body, and excessive fatigue will damage the body. Therefore, exercise and health care emphasize step by step and do what you can. So how to master the appropriate exercise intensity? At present, it is generally judged by measuring the pulse after exercise, and its calculation formula is:

170- age = suitable exercise heart rate

For example, a 40-year-old person's pulse after exercise is about 130 times, indicating that the amount of exercise is appropriate. If it obviously exceeds 130 times, it means that the amount of exercise is too large, and vice versa.

2. Perseverance and perseverance

Exercise is not a one-off event, so we should pay attention to it regularly. Hua Tuo, a famous doctor, said that "running water does not rot, and the walls of the family do not rot", on the one hand, pointed out the truth that "exercise does not last long", on the other hand, it also emphasized the importance of regular uninterrupted exercise. Therefore, only persistent and proper exercise can achieve the effect of health preservation and fitness.

3. Have a relaxed and moderate routine.

Health-keeping exercise does not mean long-term adherence to exercise, but relaxation and rest, so as to achieve the purpose of health. Strenuous exercise should alternate with rest exercises such as relaxation and pranayama; Long-term exercise, we must pay attention to proper rest, otherwise it will affect work efficiency, lead to mental fatigue, and even affect health and fitness.