Eating a little onion in the morning and drinking a little red wine at dinner can promote blood circulation. Specifically, the diet should be low in fat, low in salt, multi-dimensional and light. In short, the principle of keeping in good health in the long summer is to cultivate the mind. After the long summer, the principle of diet is "nourishing yang", and nourishing yang focuses on nourishing the heart. Drink more milk and eat more soy products, chicken and lean meat to nourish the heart, which can not only supplement nutrition, but also play a role in strengthening the heart. Eating more vegetables, fruits and coarse grains at ordinary times can increase the supply of cellulose, vitamin B and vitamin C and prevent arteriosclerosis. The principle of "increasing acidity and reducing bitterness, tonifying kidney and liver, regulating stomach and regulating qi" should be adopted. Diet should be light, mainly digestible and vitamin-rich foods, and eat less big fish and meat and greasy and spicy foods. Add mung beans, lotus seeds, lotus leaves, reed roots, lentils, etc. Cooking porridge with japonica rice, and eating it after cooling can also play a role in invigorating the stomach and dispelling summer heat. In short, the long summer diet should be low in fat, low in salt, multidimensional and light.