At present, it is in the "beginning of spring" stage of the twenty-four solar terms of the lunar calendar. Experts believe that at this stage, we should eat more leeks and pea seedlings, and eat less or no onions and peppers. Generally speaking, after arriving in beginning of spring, the days get longer, the sun gets warmer, and the temperature, sunshine and rainfall all tend to rise or increase. But there will still be frost and snowfall in most areas, and the weather will be wet and cold. As the saying goes, "It rains in beginning of spring, get up early and go to bed late", which shows the true meaning of health preservation in beginning of spring. According to the five elements theory of traditional Chinese medicine, spring belongs to wood, corresponding to liver, and the focus of health care is to nourish yang and protect liver; At this time, the common cold is easy to invade the human body, and symptoms such as colds and colds appear. Therefore, we should focus on preventing colds, epidemic diseases, rheumatism and cardiovascular diseases. Experts suggest that this solar term should eat less sour food and more sweet food to nourish the spleen. Eat more leeks, lilies, pea seedlings, shepherd's purse, jujube and so on. And avoid onions, peppers, cinnamon and fennel. Shellfish, seafood and aquatic products will increase the burden on the liver and cause diseases such as acute hepatitis, and should also be eaten less.