"Huangdi Neijing" on the four seasons of health is discussed:

The view of nature is "the unity of man and nature". The human body must conform to the laws of nature in order to maintain normal life activities. "If you go against it, it will be a disaster. If you break it, you can't afford it. It is a way. " According to different seasons, we should adopt the methods of preserving health in spring, growing in summer, harvesting in autumn, storing in winter, nourishing yang in spring and summer, and nourishing yin in autumn and winter, that is, nourishing the life of nature with the way of nature, so as to achieve the overall unity of man and nature.