Personal understanding: health care should be as early as possible, the sooner the better. As an organism, people are exposed to too many things in daily life, but most of them are for longevity, which is what we call health preservation. People are treated as an organism, and they are in the growth stage when they are young. It's too early to talk about health care. Once people reach the age of independence, what they see and hear can give a person some guidance. Since ancient times, people have been pursuing a healthy and long life. Ancient Chinese medicine research shows that the essence of human body is limited, reaching its peak in youth and middle age. However, due to irregular living habits and social status, people are overdrawing their own essence, wasting themselves and being unable to supplement themselves. When they are young, they are strong and can't feel anything, but when you are old, you will find various diseases corresponding to them. That is, with the growth of age, the output of one's own essence becomes less and less, which is not enough to compete with some diseases produced by oneself, and people will get sick, which is also one of the more common reasons for diseases of middle-aged and elderly people. The younger you are, the stronger your body is and the more energetic you are. Reasonable preservation and rational application will reduce your own diseases and lay a good foundation for yourself. Consolidate the foundation and cultivate the yuan. The sooner you consolidate the foundation, the more you can maintain it. That's all.