Premonitory symptoms of heat stroke

●In high temperature environments, symptoms such as headache, dizziness, thirst, excessive sweating, weakness and soreness of limbs, inattention, and uncoordinated movements may occur.

●The body temperature is normal or slightly elevated.

●If you move it to a cool and ventilated place in time and add water and salt, you can recover in a short time.

Mild heatstroke symptoms

●The body temperature is often above 38 degrees.

●In addition to dizziness and thirst, there are often symptoms such as flushing of the face, heavy sweating, and burning of the skin, or symptoms such as clammy limbs, pale complexion, decreased blood pressure, and rapid pulse.

●If handled promptly, recovery can often occur within a few hours.

Severe heatstroke symptoms

As the name suggests, it is the most serious form of heatstroke. If not treated in time, it will be life-threatening. This type of heat stroke can be divided into four types: heat cramps, heat exhaustion, sunstroke and heat stroke.

Characteristics of heat cramp symptoms: They often occur when excessive sweating and thirst, drinking too much water and insufficient salt replenishment lead to a rapid and significant decrease in the concentration of sodium chloride in the blood. When this type of heat stroke occurs, the muscles will suddenly experience paroxysmal spasm of pain.

Characteristics of heat exhaustion symptoms: This type of heat stroke often occurs in the elderly and people who cannot adapt to high temperatures for a while. The main symptoms are dizziness, headache, palpitation, thirst, nausea, vomiting, clammy skin, drop in blood pressure, syncope or confusion. The body temperature at this time is normal or slightly elevated.

Symptoms and characteristics of sunstroke: The cause of this type of heat stroke is just like its name. It is due to direct exposure to the scorching sun. The strong sunlight penetrates the skin of the head and skull, causing damage to brain cells, thereby causing Congestion and edema of brain tissue; since the head is mainly injured, the initial discomfort is severe headache, nausea and vomiting, and restlessness, followed by coma and convulsions.

Characteristics of heat stroke symptoms: There are also some people who engage in physical labor in high-temperature environments for a long time. The body produces too much heat and lacks heat dissipation, causing the body temperature to rise sharply. In the early stage of the disease, there is a large amount of cold sweat, followed by no sweat, shallow and fast breathing, a thin pulse, restlessness, confusion, and drop in blood pressure, and gradually develops into coma with twitching of the limbs; in severe cases, cerebral edema, pulmonary edema, heart failure, etc. may occur.

Countermeasures

What to do after heat stroke?

When you find that you or others have symptoms of premonitory heat stroke or mild heat stroke, the first thing to do is to quickly evacuate the high temperature environment that caused the heat stroke, choose a cool and ventilated place to rest; and drink more cool and salty drinks drinks. You can also apply cooling oil, Fengyoujing, etc. on the forehead and temples, or take traditional Chinese medicines such as Rendan, Shidishui, Huoxiang Zhengqi water. If blood pressure drops or collapse occurs, you should lie down immediately and go to the hospital for intravenous infusion of saline.

For those with severe heat stroke, in addition to immediately moving them from high temperature environments to a cool and ventilated place, they should also be sent to the hospital quickly and comprehensive measures should be taken for treatment.

Protection

Travel to avoid the scorching sun

Be sure to prepare sun protection equipment when going out in summer. It is best not to walk in the scorching sun between 10:00 and 16:00. Because the sun is strongest during this time, the possibility of heat stroke is 10 times higher than usual! If you must go out at this time, be sure to take protective measures, such as using a parasol, a sun hat, and sunglasses. It is best to apply sunscreen if possible; prepare enough water and drinks. In addition, in the hot summer, heatstroke prevention and cooling drugs, such as Dishui, Rendan, Fengyoujing, etc., must be kept at hand for emergency use. When going out, try to use cotton, linen, and silk fabrics as much as possible. Wear less chemical fiber clothing to avoid heat stroke due to inability to dissipate heat in time when you sweat a lot.

The elderly, pregnant women, and people with chronic diseases, especially those with cardiovascular disease, should reduce outdoor activities as much as possible during the high temperature season.

Don’t wait until you are thirsty before drinking water

Don’t wait until you are thirsty before drinking water, because thirst already means that the body is dehydrated. Ideally, drink 1.5 to 2 liters of water per day, depending on the temperature. When you sweat a lot, you can add some salt water to make up for the salt your body loses due to sweating. In addition, the human body is prone to potassium deficiency in summer, making people feel tired and fatigued. Potassium-containing tea is an excellent summer drink.

Summer seasonal vegetables, such as lettuce, cucumbers, tomatoes, etc., have a high water content; fresh fruits, such as peaches, apricots, watermelons, melons, etc., have a water content of 80 to 90%, and can be used to supplement Moisture. In addition, dairy products can not only replenish water but also meet the nutritional needs of the body.

Stay adequate sleep

In summer, when the days are long and the nights are short, the temperature is high, the human body's metabolism is strong and the consumption is high, making it easy to feel tired. Adequate sleep can relax the brain and body systems, which is not only conducive to work and study, but also a measure to prevent heatstroke. The best time to go to bed is from 22:00 to 23:00, and the best time to get up is from 5:30 to 6:30. Be careful not to lie under the air outlet or electric fan of the air conditioner when sleeping to avoid suffering from air conditioning disease and heat cold.