Snow and ice melt and plants germinate. Insects are singing in the trees, and yellow, pink and white are blooming on the roadside. This is a cheerful and gentle spring, a spring that moistens things quietly, and a spring that people look forward to infinitely.

Everything grows, and spring warms bloom. The method of keeping in good health in spring is particularly important. Han Shuangyan, director of Chinese Medicine Department of Balizhuang Community Health Service Center, introduced the second chapter of Four Seasons Temperament in Neijing: the man of Yin and Yang at Four Seasons is the foundation of all things. It is pointed out that the change of yin and yang in four seasons is the basis of biochemistry of all things. As one of all things, man must rise and fall with all things and conform to the changes of yin and yang in nature, which is also the most basic criterion of health preservation. If we violate this standard, disasters will happen and serious diseases will happen. This is also the embodiment of "the concept of correspondence between man and nature" in the theory of health preservation.

Therefore, the sage said, "the sun in spring and summer, the yin in autumn and winter, follow its roots, so everything rises and falls at the door of growth." Han Shuangyan explained that the meaning of this sentence is: a saint who knows how to keep in good health, raises yang in spring and summer, and pays attention to nourishing yin in autumn and winter. Obeying the fundamental law of health preservation, just like everything in nature, maintains the growth and development law of spring, summer, autumn and winter. Violating the fundamental law of keeping in good health will destroy the essence of human body and destroy it. Therefore, the changes of Yin and Yang Qi in the four seasons of heaven and earth are the origin of all things.

"Spring in March, this is called hair Chen. Heaven and earth are born, everything is glorious, lying at night and getting up early, striding towards the court, being slow to make life. The three months of spring are a new season for the growth and development of all things, and nature is a new scene. " Therefore, in the way of keeping in good health in spring, Han Shuangyan introduced that people should walk slowly outdoors, wear loose clothes, let loose their hair and stretch their bodies, so that their will can conform to the spirit of spring and be comfortable. Don't damage or cut it off at will for the vitality given by spring. This is the truth of conforming to the spirit of spring and preserving human vitality. If you violate this principle, it will hurt your liver qi, reduce your strength to support summer, and then there will be cold lesions in the spring of next year.