When can I get heat stroke? Why does heat stroke occur?

Heat stroke is a symptom characterized by heavy physical labor, imbalance of water and electrolytes, and dysfunction of cardiovascular and central nervous system in an environment with high temperature and high humidity. The condition is related to the health status and adaptability of the individual.

The external factors for heat stroke are mainly high temperature, high humidity and low wind speed.

It is easy to occur in high-temperature radiation working environment (dry heat environment) and high temperature and high humidity working environment (damp heat environment). According to research, the average temperature for three consecutive days exceeds 30 degrees Celsius and the relative humidity is greater than 73%, and heat stroke is most likely to occur.

At the same time, it should also be noted that although the temperature is not high and the humidity is not high, due to poor environmental ventilation, heat stroke is also prone to occur, such as in summer, people are prone to heat stroke in a closed working environment.

In the city, all kinds of tall buildings affect air circulation, the large-scale use of air conditioning in summer, the narrowness of the streets and the gradual increase of vehicles, the use of various instruments and equipment, the reduction of urban green area, etc., form a heat island effect, increase the temperature of the city. As well as the increase in global carbon dioxide emissions, the greenhouse effect, and the trend of rising temperatures, all of which have led to an increase in heat stroke.

Generally, heat stroke is more likely in the following two situations: one is high temperature and high radiation, which is commonly known as dry heat. Strong sun exposure and high temperature can easily lead to a large loss of water in the human body, and if the water is not replenished in time, it is very easy to suffer from heat stroke; The other is high temperature and high humidity, which is a common hot and humid day in summer, the human body can not sweat normally, and the increase in blood flow will also lead to heat stroke.

How do I know if I'm suffering from heat stroke?

Heat stroke can generally be divided into three categories, namely premonitory heat stroke, mild heat stroke, and severe heat stroke, with the following symptoms:

Patients with premonitory heat stroke are manifested by symptoms such as profuse sweating, dizziness, chest tightness, nausea, and weakness of limbs. Normal body temperature or slightly elevated, if you can leave the high fever environment in time, the symptoms can disappear after a short period of rest;

Patients with mild heat stroke have symptoms of premonitory heat stroke, accompanied by vomiting, clammy cold, and blood pressure drops. After mild heat stroke**, it can generally return to normal after four or five hours;

Most cases of severe heat stroke are sudden coma in a hot environment. Symptoms such as headache, numbness and tingling, dizziness, burning and crimson, and body temperature often above 40 are common.

If the landlord is satisfied, it is a satisfactory answer. Thank you.

Long-term exposure to high temperatures, exposure to the sun, etc., can cause heat stroke.

All parts of the country have entered the hot and hot season, and many places will be as high as 40. In the scorching summer, how to do a good job of preventing heatstroke and cooling down? The National Minzao Sedan Health Commission organized experts to answer this.

Sun protection when you go outside. Try to avoid long-term activities and stay in the scorching sun or high temperature environment, and do not walk or exert physical labor under high temperature exposure for a long time after 10 a.m. and before 4 p.m. unless necessary. If you must go out, you should take sun protection measures, such as wearing light-colored, loose-fitting clothes, wearing a cool hat, sunglasses, wearing a parasol, and applying sunscreen.

Once dizziness and other discomfort occur, choose a cool and ventilated place to rest as soon as possible, and replenish water in time.

The elderly, children, pregnant women, the infirm, and patients with respiratory, cardiovascular and cerebrovascular diseases should avoid going out during the high temperature period in the afternoon.

Indoor heatstroke protection. Keep the room ventilated, you can use water on the ground, use electric fans, air conditioners to cool down, but the temperature of the air conditioner should not be too low. The elderly should not wear long clothes and trousers to stay at home in order to save electricity bills or be weak and sick for fear of cold, resulting in indoor heat stroke.

When working and living in an air-conditioned environment, you should take a certain amount of time to go outdoors every day for heat-resistant exercises.

Healthy living. Drink plenty of water, reduce high-fat diet, increase the intake of foods rich in high-quality protein and vitamins, such as eggs, milk, vegetables and fruits, and control the consumption of high-sugar, alcoholic beverages and ice-cold products.

Sleep well and avoid direct air conditioning and electric fans while sleeping. Always have heatstroke prevention and cooling medicines at home, such as ten drops of water and wind oil essence, and use them correctly according to the instructions for use of the medicine.

Why does heat stroke occur?

In a high-temperature environment, the body's thermoregulation function is impaired, heat production is greater than heat dissipation, and excessive heat accumulation in the body causes circulatory system and central nervous system dysfunction, resulting in a series of heat stroke symptoms. In addition, lack of sleep, excessive fatigue, and mental stress are all common triggers of heat stroke.

How to give first aid in case of heat stroke.

When the symptoms of heat stroke appear, first of all, quickly move from the high temperature environment to a cool and ventilated place to rest, and drink some salty cool drinks, such as Bianshan light salt water, mung bean soup, etc.; You can apply cooling oil, wind oil essence on the temples, or take ten drops of water, Huoxiang Zhengqi water, etc.; If the body temperature rises, you can use a cool wet towel or ice pack to cool the head, armpits and thighs, or rub with 30% alcohol until **redness; If you have severe symptoms of heat stroke, you must immediately call the emergency services** and send the patient to the hospital for treatment in time. For this situation, we can use sunscreen to solve this problem, so that this part of ourselves is effectively protected, so as to avoid tanning and sunburn, so that we can spend this summer happily.

Heat stroke is an acute disease caused by the central nervous system and circulatory system disorders caused by the dysfunction of human body thermoregulation in a high temperature and humidity environment, when the production and absorption of heat exceeds the heat dissipation in the human body. Let me introduce to you why you have heat stroke, and if you are interested, let's take a look!

Heat stroke is a serious adverse reaction of the human body in a high temperature environment. The body temperature of a normal person is managed by the thermoregulatory centers of the cerebral cortex, diencephalon, medulla oblongata, and the lower part of the optic thalamus. The heat produced by the human body is lost through conduction, radiation, convection, and evaporation to maintain proper body temperature.

High temperature can cause dysfunction of body temperature regulation, after a certain period of heavy physical labor in the scorching sun or high temperature environment, symptoms such as sweating, thirst, fatigue, dizziness, chest tightness and other symptoms are the precursors of heat stroke, after a short rest in a cool place, replenish water and salt, the symptoms can disappear in a short time. Heat stroke is very likely to occur when the temperature rises sharply and the temperature is also high, especially in pregnant women, the elderly, and patients with frail or chronic diseases. In addition to the manifestations of heat stroke, there are also manifestations such as fever (body temperature above the body temperature), **burning, nausea, vomiting, blood pressure begins to drop, pulse thinning, etc., and those who can recover within a few hours are mild.

In addition to the above symptoms, accompanied by fainting, coma, convulsions, or those who cannot recover within one day are severe heat stroke.

1.Immediately move to a cool place or an air-conditioned room and give physical cooling.

2.Severe patients are quickly cooled down, wearing ice caps on the head, placing ice packs on both sides of the neck, and near the major inguinal arteries in the armpits, and intravenous injection of compound chlorpromazine.

3.Corrects water and electrolyte balance.

4.Prevention and treatment of comorbidities and control of infection.

1.Physical cooling, chlorpromamine and other adjuvant drugs are the mainstay.

2.Cases of heart failure should cause rapid digitalisation.

3.In addition to cooling, cerebral edema cases include intravenous infusion of 20% mannitol, furosemide, and glucocorticoids.

4.Patients who do not respond to furosemide in cases of renal impairment should undergo peritoneal dialysis or hemodialysis as soon as possible.

5.Antibiotics for infection prevention and control are used, and diffuse intravascular coagulation is diagnosed and treated accordingly.

I believe that everyone has their own unique opinion on the word heat stroke, because people will have more or less heat stroke in summer, so I will explain to you what heat stroke is.

1.First of all, heat stroke refers to a series of reactions caused by heat injury to the body in a high temperature environment, and if heat stroke is severe, there may be a risk of death.

2.Heat stroke occurs most often in the middle of the summer, and heat stroke can easily be caused by high temperatures and poorly ventilated environments. The first symptoms of heat stroke include:

Rapid breathing, gasping for breath, anxiety, glaring expression, unresponsiveness, bleeding spots, mucosal hyperemia (bright red appearance of the oral mucosa and gums), rapid heartbeat, increased body temperature (rectal temperature up to 41 43), vomiting, weakness.

3.In the end, if the symptoms of heat stroke persist, the symptoms of the final stage will appear: decreased urine output or no urine at all, cyanosis (dark purple color of the oral mucosa and gums), laryngeal edema due to constant panting, yellow bile (yellow appearance of the oral mucosa, **, and the whites of the eyes), tremors, involuntary paddling, coma, loss of consciousness, loss of reflexes, and death if heat stroke is not relieved.

Precautions. After the phenomenon of heat stroke, you must find a cool place to rest first, do not rush to eat something very cold, keep the brain in a basic condition first, and drink plenty of water. Heat stroke should be treated promptly to avoid death.

Because the sun is very hot, it will evaporate the water when it shines on people's bodies, and after evaporation, you will feel thirsty and dizzy, and because of this, you will suffer from heat stroke.

The causes of heat stroke are as follows: 1. The ambient temperature is too high, and in a windless environment, the heat obtained by the human body from the external environment suddenly increases, 2. The heat production of the human body increases, such as long-term work or long-term strong physical labor, but there are some diseases, such as fever, hyperthyroidism, etc., which can also lead to heat stroke. 3. Heat dissipation disorders, such as high humidity in the environment, excessive obesity, elderly patients, and frail elderly, can also be used to cause heat stroke.

4. Sweat gland dysfunction, some common systemic diseases, such as systemic sclerosis, scars formed after burns, and patients with congenital sweat gland deficiency are prone to heat stroke.

In summer, people who are dizzy, headache, feeling chest tightness, abdominal pain, diarrhea, nausea (or vomiting), laziness and fatigue, and lack of food and drink caused by summer heat and humidity.

The body is like a CPU, the fan does not dissipate enough heat, and the electronic components will heat up and melt.

Symptoms of premonitory heat stroke.

In a high temperature environment, symptoms such as headache, dizziness, thirst, sweating, weakness and soreness in the limbs, lack of concentration, and uncoordinated movements occur.

Normal or slightly elevated body temperature.

If you move to a cool and ventilated place in time and replenish water and salt, it can be restored in a short time.

Mild symptoms of heat stroke.

Body temperature tends to be above 38 degrees.

In addition to dizziness and thirst, there are often manifestations such as flushing, heavy sweating, and burning, or clammmy limbs, paleness, decreased blood pressure, and increased pulse.

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

Severe heat stroke symptoms.

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

1. Premonitory heat stroke: sweating, thirst, weakness, dizziness, dizziness, tinnitus, nausea, palpitations, lack of concentration, numbness in the limbs, etc., in a high temperature environment, and the body temperature does not exceed 38.

2. Mild heat stroke: the above symptoms are aggravated, the body temperature is above 38, the face is flushed or pale, sweating, clammy and cold, weak pulse, fast heart rate, blood pressure drop and other symptoms and signs of respiratory and circulatory failure.

3. Severe heat stroke:

l) Heat stroke and high fever: caused by dysfunction of the thermoregulatory center, difficulty in heat dissipation, and excessive heat accumulation in the body. Symptoms of premonitory heat stroke begin to occur, followed by headaches, restlessness, drowsiness, and even coma.

Flushed, hot and dry. Blood pressure drops, shortness of breath, and a fast heart rate. A body temperature above 40.

2) Heat stroke exhaustion: Volume depletion due to water and salt loss due to heavy sweating. The clinical manifestations are pale, clammy and cold, weak pulse, decreased blood pressure, rapid and shallow breathing, confusion, low axillary temperature, and anal temperature.

3) Heat stroke cramps: After sweating a lot, only drink a lot of water, and do not supplement salt, blood sodium and chloride are reduced, and blood potassium can also be reduced. The patient is thirsty and urins less. Muscle cramps and pain, normal body temperature.

4) Sunstroke: due to excessive sunlight shining on the head, a large amount of ultraviolet rays enter the skull, causing an increase in intracranial temperature (up to 41 42), and cerebral and meningeal edema and congestion. Therefore, severe headache, dizziness, nausea, vomiting, tinnitus, dizziness, irritability, impaired consciousness, and in severe cases, convulsions and coma occur.

Body temperature may be mildly elevated. The above can sometimes be combined.

Dizziness, fever, feeling unwell, general weakness, dizziness.

Headache, dizziness, nausea, weakness, irritability, loss of appetite.