Yang qi is nourishing in Yichun. When talking about how people should keep in good health, Huangdi Neijing, the earliest extant classic of Chinese medicine, clearly points out that people should pay attention to maintaining the yang in their bodies in spring and summer. The so-called Yang Qi is what people usually call "firepower", that is, the yang foot of human metabolism, which can cause symptoms such as chills and cold limbs.

The climate changes greatly in spring, and there are many cases where it is warm and cold at first. Moreover, the texture of the human body has begun to become loose, so clothes should be loose, soft and warm, and clothes should not be reduced. If it's a little cold, don't hold it. That's not good for your health. It is necessary to add clothes to keep warm in time, and pay attention to keeping the back warm for people with weak constitution.

To maintain yang, you need to eat more leeks, which are evergreen all year round and can be eaten by people all year round. Leek is warm, especially suitable for supplementing the yang of human body. As "Notes on Materia Medica" said, "Chinese chives are of great benefit to people's health, and it is best to eat them often."