If you do a lot of exercise or strenuous fitness exercise before going to bed at night, the nerve center of the human body needs to readjust its excitability and mobilize all organs that are about to rest. In this way, the excitability and metabolic rate of the body are forced to increase from a lower level to a higher level to meet the needs of heavy exercise or intensive exercise. After exercise, it takes some time for the excitability of various organs of the body to drop to rest, and the excitability of the nervous system drops slowly, so it is not easy to fall asleep again.

Sleep is the best way for the body to relieve physical fatigue. If you do a lot or strenuous exercise before going to bed, it will have a negative impact on the quality of sleep. Fatigue will not be eliminated, but will increase, making people feel exhausted the next day, which will not only affect the continuity of exercise and fitness, but also have a negative impact on daily activities the next day. This effect is more serious for the elderly, who themselves have poor sleep quality. If a lot of or high-intensity exercise before going to bed leads to fatigue, insomnia and other sleep problems will be highlighted. A lot of or strenuous exercise before going to bed is not only harmful to the body, but also potentially harmful to the body.

In addition, it is difficult to improve the functional state of various organs to the level required for exercise because the functional level of various organs of the human body declines before going to bed and no warm-up activities are done. If there is insufficient blood supply to the brain, myocardium or skeletal muscle, fatigue, dizziness and blackening will occur. For the elderly who are weak and have some health problems all the time, such a situation may lead to accidents and even life-threatening. Therefore, you can't do a lot of exercise or exercise before going to bed.

Of course, it is beneficial to do some low-intensity relaxation activities before going to bed, such as radio exercises, Qigong, Tai Ji Chuan and so on. These exercises help to stabilize the mood, induce the excitement inhibition of the nervous system and help sleep.