First of all, I think personal fitness has little to do with age. The only thing that matters is that people who are too young don't have to rush to exercise, and people who are too old don't want to exercise too much. Why?

Young children are still in the development stage of the front part of the body. At this time, he needs to consume a lot of material energy to supply his growth. There is no need to consume too much energy to exercise, because he is not so easy to gain weight when he is growing up, and he is always afraid of insufficient nutrition when he is young. And exercising muscles may affect the development of bones. If it causes the epiphysis to heal prematurely and affects the height, it will not be worth the loss.

The most common symptom of the elderly is osteoporosis, which is no joke. Osteoporosis patients' ability to bear pressure has been greatly reduced. Unlike young people's bones, which are mostly dense, the bones of the elderly are mostly spongy and cannot bear too much force, otherwise it will easily lead to stress fractures. Old people often break bones when they fall, and the healing is slow, which will cause many complications.

Why do people like ZhangFeng yi still have muscles when they are 63 years old? One is to have a foundation when you are young, and the other is to control your diet well. When you are young, you can improve your endurance when you are old, so ZhangFeng yi is a little better than others of the same age. Secondly, when there is not much training, if you don't eat too much, you will naturally not gain much weight.

People's bodies begin to decline at the age of 40 to 50. Although everyone is different, we should all serve the old. This service is based on the laws of nature and the natural decline of body function, so don't be too competitive. Our mentality can still be young. Exercise is ok. At this time, the intensity and frequency should be appropriate, not too intense.