“The “three-volt day” is the time of the year when the temperature is the highest, and the people say “bitter summer” is at this time. During this period, many people will experience weakness, lack of energy, low work efficiency and weight loss. Prevention of injury to the sun in the heat of the day, if the use of measures to prevent heatstroke is not scientific, it is easy to damage the yang in the human body. For example, many young people like to eat cold drinks to relieve the summer heat, but eat too much will lead to an increase in the body’s cold, inducing disease. There are also many people like a summer to stay in an air-conditioned place, but after sweating and blowing air conditioning, the human body Wei Qi is not solid, will damage the body’s Yang Qi. General indoor air conditioning temperature and outdoor can not be too big a difference, air conditioning temperature at 26 ℃ ~ 27 ℃ can be. Prevent stomach injury Many people like to drink herbal tea drinks after the ambush, these drinks basically contain chrysanthemum, honeysuckle, lotus leaves and other fire components of traditional Chinese medicine, for the spleen and stomach is cold people, drink too much herbal tea is “adding frost”. The general public should not drink for a long time. After the ambush, many people have a bad appetite, do not like to eat staple food, vegetables only eat raw, not cooked. In this way, not only is nutrition difficult to ensure, and because of cold vegetables, raw food is not easy to digest, will hurt the spleen and stomach. Prevention of injury to the bowel Many people to the hot days of ambrosia began to worry about wearing clothes, in order to good shape at all costs dieting to lose weight. But by eating less or even excessive dieting to lose weight in the people, nearly 80% of the dieters experienced constipation, the vast majority of them are caused by the diet structure is unreasonable, eat too little will lead to insufficient nutritional intake, destroying the balance of intestinal flora, caused by digestive dysfunction, and, if there is not enough food residue in the intestines, especially dietary fiber to stimulate intestinal peristalsis, prone to lead to constipation. More water Beijing Medical Association Anal and Intestinal Hospital Professor Rong Wenzhou said that people need to drink water every day in the 1200 to 1500 milliliters or so, so many people also noted that sweat more voltaic more should be more hydration, but if you often supplement the market sale of pure water, mineral water and mineral water these three kinds of water, may not be healthy. For example, many manufacturers produce the so-called mineral water is basically in the pure water on the basis of artificially adding some mineral elements, such as magnesium, too much intake of this kind of elements will cause the loss of calcium. Boiled water is best to drink within 4 hours, because this interval is the longest time limit for water molecule vitality to be effectively preserved, more than 4 hours, the vitality of the water molecules began to decrease significantly. More sun on the back and legs Many people summer excessive sunscreen is not good. Because the sun is not only vitamin D “activator”, but also a natural “health medicine”. Sun exposure will promote the generation of vitamin D and calcium absorption, to prevent osteoporosis. For example, appropriate sunshine back can smooth the blood, sunshine legs and feet to help get rid of the body’s cold. 10 am to 11 am sunshine is the best, this period of time in the sun’s ultraviolet light is low, can make people feel warm and soft, can promote metabolism, and to avoid harming the skin, but the summer sun is relatively strong, it is best for people to sunbathe in the morning a little earlier, the afternoon time to postpone a little. Afternoon 4 ~ 5 points in the ultraviolet ray X-ray beam component, can promote calcium, phosphorus absorption, enhance physical fitness, promote normal calcification of bones, is also a good “sun point”. But pay attention not to sunshine through the glass, through the glass ultraviolet transmittance rate of less than 50%, the role will be discounted. Eat more fish three days is a good time to eat fish, each fish have their own focus on the health effects, such as three days in the hot weather, in the rainy time the body is very susceptible to the influence of dampness, resulting in heavy body moisture, many people know barley, red beans can eliminate dampness, in fact, crucian carp soup is a good good product to eliminate dampness. There is also perch on the liver and kidney insufficiency of people have a very good tonic effect. Perch meat is white and tender, no fishy flavor, meat is garlic clove-shaped, the most suitable for steaming, braised or stewed soup. There are also more common grass carp in this season, which has the effect of warming the stomach and brightening the eyes.