This is mainly due to the imbalance of thermoregulation, excessive heat accumulation in the body and disorders of water and salt metabolism in a hot environment. The disease usually occurs in the summer heat and high humidity weather, heatstroke light sweating, dizziness, chest tightness, palpitations, nausea, vomiting and other symptoms; serious fainting or spasms, life-threatening. 1, drink water After sweating a lot, it is important to replenish water in time. Outdoors, especially high-temperature work, be sure to ensure adequate drinking water. But remember, do not wait until you are thirsty to drink water, because thirst has indicated that the body has been dehydrated. The ideal is to drink 1.5 to 2 liters of water a day, depending on the temperature. When you sweat a lot, you can add some salt water to make up for the salt lost by the body due to sweating. In addition to plain water, we can also think about drinking tea, drinking milk, eating fruits, etc. In summer, the human body is prone to potassium deficiency, making people feel tired and weary, potassium tea is an excellent summer drink. And dairy products that can hydrate, but also to meet the body’s nutritional needs, is a very good choice. Finally, fruits and vegetables, etc. I do not think I need to elaborate, peaches, apricots, watermelon, melons and other water content of 80% to 90%, hydration capacity is superb. 2, cooling summer go out, it is best to avoid 10 a.m. to 4 p.m. this time, go out must do a good job of protection, such as playing umbrella, wearing a sun hat, wearing sunglasses, prepare sufficient water and drinks; carry some anti-coldness medicine, such as ten drops of water, wind oil essence, etc.; clothes also try to use cotton, linen, silk and other fabrics, less wear chemical fiber clothing, so as not to sweat a lot when the heat can not be timely. cause heatstroke. Once you have signs of heat stroke when you go out, take immediate measures to find a cool and ventilated place and untie your collar to lower your body temperature. If you are often outside in summer, the possibility of heatstroke is high, so it is best to carry the following drugs with you in case of emergency: Western ginseng preparations (capsules or tablets, slices), for the weak qi and yin constitution, that is, the usual weakness, dry mouth and throat, with the effect of benefitting qi and nourishing yin; Huo Xiang Zheng Qi soft capsules, Huo Xiang Zheng Qi drops, etc., for the stomach and intestinal disorders, with the effect of stomach and clearing summer heat and dampness; Ren Dan, ten drops of water, for The aura of heat stroke, i.e. headache, dizziness, thirst, sweating and weakness in a hot environment. These drugs have the effect of clearing the heat and waking up the mind, but Ren Dan contains vermilion and should not be taken in excess to prevent mercury poisoning; Salvia tablets, for those with cardiovascular disease or dyslipidemia, hyperviscosity, have the effect of activating blood circulation and removing blood stasis. 4, sufficient sleep In hot weather, people’s physical exertion, easy fatigue, so to ensure adequate sleep, so that the brain and other systems to get sufficient rest, so that the new day full of energy, full of energy, can effectively prevent heat stroke. It is best to ensure 8 hours of sleep every day, do not stay up late, it is best to go to bed at 22:00 at night and get up at 6:00 the next day, do not blow directly against the fan or air conditioning while sleeping. You can take a nap at noon. Some studies show that sleeping during the day can effectively reduce the body temperature, and the hottest at noon, choose sleep can effectively avoid the hot weather, and can be timely replenishment of physical strength. Special reminder: focus on the elderly, young, sick, weak and other high-risk groups. Although all kinds of people can be affected by heat stroke, but infants and young children, older people over 65 years old, people with chronic diseases such as mental illness, heart disease and hypertension are more likely to be at risk and should pay extra attention to observe whether signs of heat stroke appear in time.