In fact, health care should follow the laws of nature, such as the sunrise and sunset of the ancients. Therefore, I personally think that at the beginning of fitness and health, we must start with the rules of work and rest, such as advocating going to bed late and getting up early in summer. It doesn't matter if you don't understand Chinese medicine theory. I suggest you buy easy-to-understand health books to learn. Chinese medicine does have expertise in health preservation.