I don't have enough energy, I don't like going out to play, I sleep a lot, and my body is often weak. Only then did I find myself so old, my body had begun to decline and I was no longer young. At this time, I want to maintain my body, but I missed the best years. Time waits for no one, and I won't wait for you because you missed the time. Now we can only use some health-preserving methods to regulate the body and prevent it from slipping.