Grain Rain is the sixth of the 24 solar terms. Every year from April 19 to April 2 1 day, when the sun reaches 30 degrees of the yellow meridian, it is Grain Rain, which comes from the old saying "Rain gives birth to hundreds of valleys". In ancient China, Grain Rain was divided into "three stages": "The first stage began at Houping; The second time, pigeons blow feathers; The third is that Dai Sheng fell to Sang. " After Grain Rain, rainfall increased, duckweed began to grow, then cuckoo began to remind people to sow, and then Dai Sheng birds began to be seen on mulberry trees. In ancient times, the so-called "rain gives birth to hundreds of valleys" embodies the significance of modern agricultural climate of "Grain Rain". In spring, the liver is strong and the spleen is weak. The spleen was in a vigorous phase around Grain Rain 15 and 3 days after Qingming. Liver qi is full, and the heart is getting stronger. Spleen exuberance will make the stomach exuberant, and make the digestive function in an exuberant state, which is conducive to the absorption of nutrients. Therefore, this is a good time to make up the body. However, we should not take supplements like winter. Eat foods that are beneficial to liver and kidney, and foods that contain more B vitamins, such as wheat germ powder, standard flour, buckwheat flour, naked oats flour, millet, barley, soybeans and other beans, black sesame seeds, etc. So as to adapt to the changes of yin and yang and lay the foundation for a safe summer. The ancients said that "the spleen does not eat four seasons." Instead, we should eat some foods that have the effect of enriching blood and benefiting qi. This can not only improve physical fitness, resist the spring epidemic, but also lay the foundation for a safe summer. If you don't eat properly, it's easy to damage your stomach. In this sense, this period is prone to stomach diseases. Eliminating the causes is the key to treatment, such as quitting smoking and drinking, not overeating, not hungry, eating less and eating more meals, and avoiding food and drugs that irritate the stomach.

After Grain Rain, the humidity in the air gradually increased, which made people uncomfortable from the inside out. From the point of view of TCM health preservation, in such a humid environment, moisture can easily invade the human body, resulting in loss of appetite, heavy body, top-heavy, and sore joint muscles. If you already have various joint diseases, such as rheumatoid arthritis, it is also easy to induce in this solar term.

Therefore, Grain Rain should pay attention to eliminating dampness and cooperate in diet. The foods with good dampness eliminating effect are: white lentils, red beans, coix seed, yam, lotus leaves, gordon euryales, wax gourd, dried tangerine peel, white radish, lotus root, kelp, bamboo shoots, crucian carp and bean sprouts.

Before and after Grain Rain, you should eat more cold and nourishing food, such as watermelon, melon, banana, sugarcane, mango, loquat, apple, pear, persimmon, water chestnut, mulberry, tomato, cucumber, bitter gourd, white radish, towel gourd, lotus root, water bamboo, arrowhead and so on.