Spring is the first of the four seasons and the beginning of Vientiane's renewal. Huangdi Neijing said: "Spring is March, which is called Chen. Everything is born and everything is glorious. " In other words, spring returns to the earth, the snow and ice melt, the sun rises as an elf in nature, everything recovers, and everything is thriving. In the three months of spring, there are six solar terms: beginning of spring, Rain, Sting, Vernal Equinox, Qingming and Grain Rain, which are characterized by fading cold, warming climate and reviving everything.

China's old proverb "Spring covers the autumn and freezes" accords with the principle of keeping in good health in spring. Therefore, it is advisable to keep warm and avoid the cold in spring, especially for the weak and sick.

After a winter confinement, the yang in the human body should move with the trend of spring when bloom is warm in spring and the sun is growing, and rise outward, corresponding to the qi of heaven and earth. Sun Simiao, a health expert in the Tang Dynasty, said: The way to keep healthy in the Tang Dynasty is often to get more with less work. "In the cold winter, people have more indoor activities, so the functions of various organs and organs have declined to varying degrees. As the climate gets warmer in spring, we should strengthen outdoor sports, stretch our limbs and exercise our bones and muscles.

In spring, the climate gets warmer, everything recovers and flowers are in full bloom. Many pathogenic microorganisms, bacteria, viruses, etc. It has also entered a stage of vigorous growth and reproduction. In addition, the weather is dry and dry in spring, which is prone to strong winds and easily leads to health problems such as asthma and allergies, which need to be avoided. "

In terms of diet, we should abide by the principle of "nourishing yang in spring and summer" put forward in Huangdi Neijing, and eat more foods that can warm and tonify yang. In spring, the yang of the human body also conforms to nature and diverges upward and outward. Therefore, in spring, we must master the characteristics of seasonal qi-moving, pay attention to protecting the yang in the body, make it abundant and gradually vigorous, and avoid any situation that damages or hinders the yang.

With the different climate of the four seasons, the choice of cold, hot, bitter, sour, spicy and sweet foods should also be different. In spring, the liver is dominant, and the acid corresponds to the liver, which can enhance the function of the liver. Liver belongs to wood, spleen belongs to soil, and wood in the five elements can overcome soil, which is easy to cause excessive liver qi and inhibit the function of spleen and stomach. So it is easy to be weak in the spleen and stomach in spring. Sun Simiao, a health care practitioner in the Tang Dynasty, said: "It is advisable to keep sour and sweet in spring to nourish the temper." This means that when spring comes, people should eat less sour food and eat more sweet food. The advantage of this is that it can replenish the spleen and stomach of the human body.