What would you like to say is the hottest thing recently?
Of course it’s the weather!
In the past few days,
most parts of the country have continued to have high temperatures.
People have lamented:
On such a hot day,
life is caused by the air conditioner!
After all, prolonged exposure to high temperatures is very dangerous
-
Did you see the news above?
" HT" is the keyword
What is HT?
Heat stroke, also known as severe heatstroke, is a very dangerous emergency. People who suffer from this disease will be life-threatening.
The human body has a body temperature regulation center . Under normal circumstances, it will adjust the balance of heat production and heat dissipation in the body to maintain the body temperature at around 37°C.
But in some cases, this balance of production and heat dissipation will be broken, causing heat to accumulate in the body, causing heat stroke.
Generally speaking, human body heat dissipation mainly relies on radiation, evaporation and a small amount of convection and conduction.
When the ambient temperature is higher than the skin temperature, the human body can only rely on evaporation and sweating to remove heat. However, when the temperature is too high, the heat dissipation capacity will decrease (this phenomenon is called sweat exhaustion), and heat accumulation will occur in the body, resulting in The organs, especially the brain, "go out of control" and heat stroke occurs.
Heat stroke is caused by the rapid accumulation of heat in the body. Patients often experience symptoms such as local muscle spasm, high fever, no sweat , dry mouth, coma, difficulty breathing, and even respiratory failure, which is the most fatal form of heatstroke.
In addition to individual factors, the incidence of heat stroke is closely related to three factors: high temperature, high humidity and a closed, windless environment.
Generally mild heatstroke occurs, with the body temperature often exceeding 38°C, accompanied by symptoms such as facial flushing, profuse sweating, burning skin, nausea and vomiting, or cold limbs, pale face, decreased blood pressure, and rapid pulse.
and The difference between heat stroke and heat stroke is that it manifests as high fever (rapid rise in body temperature), often no sweating and even coma shock.
Heat stroke is usually accompanied by a body temperature as high as 40°C or above.
What happens when the body temperature reaches 40°C?
When the human body temperature is 37°C, the body's heat production and heat dissipation are relatively balanced, and the body's functions are the most stable. can also have an adjustment mechanism when body temperature rises, but when it exceeds a certain limit, it will lead to organ intolerance and organ failure.
For example, for the heart, when the body temperature exceeds 37°C and gradually rises to over 40°C, cardiac output will increase exponentially, and oxygen consumption will also increase by about 40%.
But when the body temperature reaches 42℃, the ultra-high temperature exceeds the tissue tolerance limit, which can lead to organ failure and be life-threatening.
Which groups of people
should pay special attention to heat stroke?
Heat stroke is most likely to occur in the elderly, children, pregnant women or people with underlying diseases (such as cardiovascular and cerebrovascular diseases, and obesity).
The body functions of the elderly decline, and cardiac output cannot be adjusted in high temperature environments, leading to heatstroke due to circulatory disorders. Children often suffer from heatstroke due to poor sweat response.
In addition, people with colds, fever, gastroenteritis resulting in diarrhea and hypokalemia are also prone to heat stroke.
How to provide correct rescue if heat stroke
occurs?
Immediately transfer the patient to a cool and ventilated place, then let him lie down, physically cool him, replenish water (salt water is best), etc. At the same time, call 120 for emergency treatment in a timely manner, and the treatment cannot stop during the emergency treatment.
How to prevent heat stroke?
Outdoors, the main objective factors that affect people's heat stroke include: daily average temperature, relative humidity and maximum temperature.
If the daily average temperature is >30°C and the relative humidity is >73%, the probability of heat stroke will show an obvious upward trend. If is added to : the maximum temperature is ≥37°C, the number of heat strokes will increase sharply. If you meet two of the conditions before going out, you should pay attention.
In addition, it should also be noted that the alternation of hot and cold can also easily cause heat stroke. The body cannot adapt to it all of a sudden, and there may also be body temperature regulation disorders, water and electrolyte balance imbalances, and heat stroke neurological disorders.
For people who need to work outside for a long time or whose working environment is hot and airtight, it is best to prepare some salt water, ice cubes, etc. in advance.
In addition, when people suffer from heat stroke, they usually have symptoms of heat stroke, which generally include symptoms such as headache, dizziness, thirst, excessive sweating and weakness in the limbs.
If it is moved to a cool and ventilated place in time, physically cooled down and replenished with water (salt water is best), it can recover in a short time.
Pay attention to getting enough sleep and drinking plenty of water. When there is a high temperature warning, go out as little as possible.
reminds everyone again:
When the symptoms of heat stroke are severe,
must not be careless and
please seek medical treatment in time.
Source: Xinhua News Agency
Responsible editor: Bai rice
[2019-07-151 issue]
Recent highlights
1. The Beijing Municipal Public Security Bureau held an education work meeting on the theme of "Don't forget the original intention, keep the mission in mind"
2. Ministry of Public Security: "Cloud Operation "Sword" starts from now on!
3. [Internet police reminder] "My sister asked me to add you to ask for advice." WeChat new fraud tricks exposed
4. Big news! A convenient, safe and responsive reporting platform for combating crime and evil is here!
5. [Aite said] Do you know the benefits of the online real-name system?
We are the Internet police patrol and law enforcement account of the Beijing Public Security Bureau. If you find harmful information or clues about illegal crimes online, please report it to us through the platform private message . The vast Internet, I hope you and I can join hands to create a clear network.
WeChat : Capital Internet Police
