In the blink of an eye, more than a third of the year has passed, ushering in the seventh of the twenty-four solar terms in the lunar calendar, the first solar term of summer, indicating the official start of the summer season, when the sun reaches 45 degrees of the yellow meridian. Summer begins when the sun reaches 45 degrees of the ecliptic. It is customary for people to consider the beginning of summer as an important festival when the temperature rises significantly, the summer heat is approaching, thunderstorms increase, and crops enter their peak season. This festival was established in the late Warring States period (239 B.C.) to herald the change of seasons and the beginning of summer. In the long history of development, Chinese medicine sages summed up a lot of experience in summer health and disease prevention, providing valuable knowledge for future generations to better survive the hot summer. Traditional Chinese medicine believes that people should follow the changes in weather during spring and summer, focusing on the heart. The heart is a yang organ and is the master of yang energy. The yang energy of the heart drives blood circulation and maintains one’s life activities. The Yang heat of the heart not only maintains its own physiological functions, but also has a warming effect on the whole body, and the body’s water metabolism and sweat regulation are inseparable from the important role of the heart Yang. In early summer, the elderly are prone to stagnation of qi and blood, blood vessels are prone to obstruction, so every morning you can eat a little onion and drink a small amount of wine to promote the flow of qi and blood, heart vessels are not obstructed, you can prevent heart disease. After the summer, the weather gradually turn hot, diet should be light, should be easy to digest, vitamin-rich food, large fish and meat and greasy and spicy food to eat less. After the summer diet principle is “spring and summer nourishing Yang”, nourishing Yang is important to nourish the heart, nourish the heart can drink more milk, eat more soy products, chicken, lean meat, etc., both to supplement the nutrition, but also play a strong role in the heart. The usual eat more vegetables, fruits and coarse grains, can increase the supply of fiber, vitamin B, C, can play a role in the prevention of atherosclerosis. In short, the summer season to nourish the heart, to prepare for the summer heat, so that the body organs function properly, in order to achieve the “right qi is sufficient, evil can not dry” realm. Because of the summer heat and sweating, the body lost more water, the spleen and stomach digestive function is poor, so more into the thin food is an important method of summer diet. If you eat porridge in the morning and evening meal, and drink soup at lunch, this can not only quench thirst, cool and quench the summer heat, but also nourish the body. Add some lotus leaves to the porridge, called lotus leaf porridge, the taste is fragrant, slightly bitter in the porridge, can wake up the spleen and appetite, can eliminate summer heat, nourish the stomach and intestines, the role of thirst. Add some mung beans to the porridge or use mung beans alone to make soup, which can quench summer heat and thirst, clear heat and detoxify the body, produce fluid and diuretic. In addition to a clean and light diet, we should also pay attention to some nutrients and adequate vitamins. Such as eating more such as tomatoes, green peppers, winter melon, watermelon, prunes, melons, peaches, pears and other fresh fruits and vegetables. However, elderly people with physical weakness should pay attention to the fruits are best cooked and eaten, or juiced and heated. To prevent cold into the body to cause disease. Cancer patients should pay more attention. Replenish water and inorganic salts. Pay special attention to potassium supplementation. Beans or soy products, mushrooms, fruits and vegetables are good sources of potassium. Eat more foods that clear heat and dampness, such as watermelon, bitter melon, peach, umeboshi, strawberry, tomato, cucumber and mung bean, etc. have good effect on eliminating heat. A moderate amount of protein, such as fish, lean meat, eggs, milk and beans are the best quality protein.