This should be just a statement. I don't see any statistics to show this. In fact, that is to say, athletes' sports career is a competitive sports process based on achievements and data, and it is a loss-making behavior at the expense of overdraft physical fitness. It tapped the potential of the body, but it didn't play a role in fitness because of pain and excessive wear. In other words, under the aim of "higher, faster and farther", athletes have been far away from the original intention of "keeping fit". In the words of a martial artist, he (she) only achieved external training of bones and muscles, but did not complete internal training. Long-term intensive training and far from enough rest and sleep time, the free radical index in the body is much higher than that of ordinary people. "Internal injury" is the number one "killer" that affects the life span of athletes!

Personally, I am very opposed to all kinds of weight-bearing sports such as hiking, long-distance running and "challenging the limits". If there is no "internal strength" as a guarantee, the harder you practice, the greater your physical injury. Fitness, don't compete with anyone. We must do it in a happy mood and according to our own conditions and circumstances. Anything linked to grades is definitely harmful to health! Physical education has long been a national need and a group need, but it has little to do with health.