"Life lies in exercise", which is a universal law in biology. People who are diligent in thinking are very flexible. Because in the process of using the brain, the blood supply to the cerebral vessels is sufficient, and they are often in a stretched state. In this way, brain nerve cells will be well maintained, thus making the brain more developed and avoiding the aging of the brain. People who are lazy to think are likely to be precocious because their brains are less stimulated by information and their brain cells are not well maintained.