First, because everyone exercises in the wrong way.
Although some people like to keep fit, the exercise methods they do refer to the movements taught online and never go to the gym for the help of professional coaches. Although these methods look very similar, the gourd painting gourd ladle is very different from the original. Exercise is not like painting. There may be similar figures when painting, and if you add colors, you can achieve nine points of similarity. However, the wrong exercise method can also cause great harm to the body. Some people like sports. Therefore, when you are exercising, don't just think about doing some strenuous exercise, so as to form muscles quickly. This way can only destroy your body.
Second, the amount of exercise is relatively small.
Although some people say exercise, I believe everyone will lie in their own bed without the urging of coaches or friends. This kind of person has weak self-control ability and insufficient exercise. Even if he practices for a long time, he can't develop his muscles. Therefore, everyone usually needs to do some aerobic exercise, and the amount of exercise should be increased day by day, so that the muscles can become stronger and stronger.
Three. Concluding remarks
Life lies in exercise, but everyone should accept exercise in a reasonable way from the beginning. Never use strenuous exercise, it will only hurt your health. Step by step, wait until everyone's body has adapted to various exercise intensities before exercising, so that their muscles are more and more developed.