The last solar term in spring is Grain Rain. It enters the festival around April 20 in the Gregorian calendar, when the sun reaches 30 degrees of the yellow meridian. The explanation of "Grain Rain" in the twenty-four solar terms is: "In mid-March, after the rain, the soil and paste pulsated, and now it rains again, and its valley is in the water. Rain is pronounced as silent, such as "rain on my field". At this time, cover the valley and sow, from top to bottom. " When I was young, Guangji quoted Sanli as saying: "Grain Rain said that rain will give birth to hundreds of valleys." The cold wave weather of this festival has basically ended and the weather is getting warmer. In most parts of China, the average temperature is above 12 degrees Celsius, and the rainfall increases obviously, which is very beneficial to the growth of cereal crops, so it is called "Grain Rain".

Grain Rain is the last solar term in spring. At this time, the temperature rises, the rainfall increases, and the human body is more sleepy, but the digestive function of the human body is in a vigorous period, which is a good time for health preservation. According to the climate characteristics, you can eat more seasonal vegetables and carry out diet therapy, which can be described as getting twice the result with half the effort. There are several seasonal fruits and vegetables to choose from in Grain Rain.

1, soybean sprouts: soybean sprouts have the effects of clearing away heat and improving eyesight, invigorating qi and nourishing blood, preventing gingival bleeding and cardiovascular sclerosis, and lowering cholesterol. Spring is the season when vitamin B2 deficiency really occurs frequently. Eating soybean sprouts in spring can effectively prevent vitamin B2 deficiency. Vitamin E contained in bean sprouts can protect skin and capillaries, prevent arteriosclerosis and prevent hypertension in the elderly.

2, Malantou: Malantou is flat, sweet, slightly cold and non-toxic. Contains protein, fat, vitamin C, organic acids and other nutrients. It has the effects of clearing away heat and toxic materials and eliminating dampness. It is suitable for suppurative inflammation such as hematemesis, nosebleeds, acute hepatitis, pharyngitis, tonsillitis, mumps and mastitis.

3, cold potato: cold potato is also called bean potato, which is cool and sweet, and has the effect of quenching thirst, hangover and lowering blood pressure. People with wind-heat cold, fever, headache, hypertension, red face and red eyes, and dry stool should eat it. Patients with stomach cold, women with cold dysmenorrhea and diabetic patients should not eat more during menstruation.