symptoms of heatstroke heatstroke refers to an acute disease characterized by the disorder of central nervous system and circulatory system caused by the disorder of body temperature regulation in high temperature environment. In addition to high temperature and scorching sun exposure, excessive work intensity, too long time, lack of sleep and excessive fatigue are common causes. According to the severity of clinical manifestations, heatstroke can be divided into threatened heatstroke, mild heatstroke and severe heatstroke, and the relationship between them is gradual. Symptoms of threatened heatstroke ● Symptoms such as headache, dizziness, thirst, hyperhidrosis, weakness and soreness of limbs, inattention, and uncoordinated movements appear in high temperature environment. ● Normal or slightly elevated body temperature. ● If it is moved to a cool and ventilated place in time and supplemented with water and salt, it can be recovered in a short time. Mild heatstroke symptoms ● The body temperature is often above 38 degrees. ● In addition to dizziness and thirst, there are often manifestations such as flushing, excessive sweating and burning skin, or cold limbs, pale face, decreased blood pressure and rapid pulse. ● If handled in time, it can often be recovered within a few hours. Severe heatstroke symptoms, as the name implies, are the most serious type of heatstroke, which will be life-threatening if not treated in time. This kind of heatstroke can be divided into four types: heat spasm, heat exhaustion, sunstroke and sunstroke. Characteristics of symptoms of heat spasm: it mostly occurs when the concentration of sodium chloride in blood decreases rapidly and obviously due to excessive sweating and thirst, excessive drinking water and insufficient salt supplement. When this kind of heatstroke happens, the muscles will suddenly have paroxysmal spasmodic pain. Symptoms and characteristics of heat exhaustion: this kind of heatstroke often occurs in the elderly and people who can't adapt to the high temperature for a while. The main symptoms are dizziness, headache, palpitation, thirst, nausea, vomiting, cold skin, decreased blood pressure, syncope or confusion. The body temperature at this time is normal or slightly high. Symptoms and characteristics of sunstroke: The cause of this kind of heatstroke is just like its name, because under the direct exposure of the scorching sun, strong sunlight penetrates the skin and skull of the head and causes brain cell damage, which in turn causes congestion and edema of brain tissue; Because the main injury is the head, the initial discomfort is severe headache, nausea and vomiting, irritability, and then coma and convulsions may occur. Symptoms and characteristics of heatstroke: Some people have been engaged in manual labor in high temperature environment for a long time, and their bodies produce too much heat, but the heat dissipation is insufficient, which leads to a sharp rise in body temperature. There was a lot of cold sweat in the early stage of onset, followed by no sweat, shallow breathing, rapid pulse, restlessness, confusion and blood pressure drop, and gradually developed into coma with limb convulsions; Severe cases can produce brain edema, pulmonary edema, heart failure and so on. Countermeasures What should I do after heatstroke? When you find yourself and others with symptoms of threatened heatstroke and mild heatstroke, the first thing to do is to quickly evacuate the high temperature environment that causes heatstroke and choose a cool and ventilated place to rest; And drink more salty and cool drinks. You can also apply cool oil, essential balm, etc. on the forehead and temples, or take traditional Chinese medicines such as Rendan, Ten Drops of Water and Huoxiang Zhengqi Water. If blood pressure drops and collapses, you should lie flat immediately and go to the hospital for intravenous drip of saline in time. For severe heatstroke patients, in addition to immediately transferring them from high temperature environment to a cool and ventilated place, they should also be sent to the hospital quickly, and comprehensive measures should be taken for treatment. Protect yourself from the scorching sun. Remember to prepare sunscreen when you go out in summer. It is best not to walk in the scorching sun from 1: to 16: , because the sun is strongest at this time, and the possibility of heatstroke is 1 times that of usual! If you have to go out at this time, you must do a good job of protection, such as playing umbrellas, wearing sun hats and sunglasses, and it is best to apply sunscreen if possible; Prepare plenty of water and drinks. In addition, in the hot summer, heatstroke prevention and cooling drugs, such as Shidishui, Rendan, Fengyoujing, etc., must be kept at hand to prevent emergency use. When going out, try to choose cotton, linen and silk fabrics, and wear less chemical fiber clothing to avoid heat dissipation in time when sweating heavily, causing heatstroke. The elderly, pregnant women, people with chronic diseases, especially those with cardiovascular diseases, should try to reduce outdoor activities as much as possible in the hot season. Don't wait for thirst to drink water. Don't wait for thirst to drink water, because thirst indicates that the body is short of water. Ideally, drink 1.5 to 2 liters of water every day according to the temperature. When sweating more, you can add some salt water appropriately to make up for the salt lost by sweating. In addition, the human body is prone to lack of potassium in summer, which makes people feel tired and tired. Potassium-containing tea is an excellent summer drink. Seasonal vegetables in summer, such as lettuce, cucumber and tomato, have higher water content. Fresh fruits, such as peaches, apricots, watermelons and melons, have a water content of 8 to 9%, which can be used to replenish water. In addition, dairy products can not only replenish water, but also meet the nutritional needs of the body. Keep enough sleep. In summer, the days are long and the nights are short, the temperature is high, and the human body has a strong metabolism and a large consumption, which makes it easy to feel tired. Adequate sleep can relax the brain and body systems, which is not only beneficial to work and study, but also a measure to prevent heatstroke. The best time to go to bed is 22: to 23: , and the best time to get up is 5: 3 to 6: 3. Be careful not to lie under the air outlet of the air conditioner and the electric fan when sleeping, so as not to suffer from air conditioning disease and cold.