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The sun is scorching, and people often say "it's so hot". Sometimes this is not a joke. There have been many cases of coma and even death in " heat stroke ".
According to The Paper , recently many hospitals in Zhejiang have sent patients to the hospital for continuous heatstroke, and many people have been diagnosed with heatstroke and have died. In addition, people in Henan, Jiangsu and Sichuan have been diagnosed. What is heat stroke? What does it have to do with heatstroke? How to prevent and treat?
What is heat stroke?
Heat stroke disease, also known as severe heat stroke, is a very dangerous emergency. The mortality rate is very high, reaching 40% to 50%. For people over 50 years old, the mortality rate even reaches about 70%.
The human body has a temperature regulation center. Under normal circumstances, it will regulate the balance of heat production and heat dissipation of the body, so that the body temperature can be maintained at around 37°C. But in some cases, this balance of production and heat dissipation will be broken, causing heat in the body to accumulate, causing heat stroke.
Generally speaking, the body's heat dissipation mainly depends 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 take away heat, but when the temperature is too high, the heat dissipation ability will decrease (this phenomenon is called sweat failure), and heat accumulation occurs in the body, causing the organs, especially the brain to "out of control", and heat stroke.
Heat stroke is caused by the rapid accumulation of heat in the body. Patients often experience local muscle spasms, high fever, no sweating, dry mouth, coma, difficulty breathing, and even respiratory failure. It is the most fatal type 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 and windless environment.
is generally mild to heat stroke, and the body temperature will often exceed 38°C, accompanied by symptoms such as flushing on the face, heavy sweating, burning skin, nausea and vomiting, or cold limbs, pale face, decreased blood pressure, and rapid pulse.
The difference between heat stroke and heat stroke is that it manifests as high fever (fast increase in body temperature), frequent sweating and even coma shock.
Which groups of people should pay special attention to?
Heat stroke is most likely to occur in the elderly, children, pregnant women or people with underlying diseases (such as cardiovascular and cerebrovascular disease , obesity).
The physical function of the elderly is reduced, and the cardiac output cannot be adjusted in a high temperature environment, resulting in heat stroke due to circulation disorders. Most children are suffering from heatstroke due to poor sweating reaction ability. In addition, people with colds, fever, gastroenteritis, , diarrhea and hypokalemia can also be prone to heatstroke. How to correctly rescue
?
transfers the patient to a cool and ventilated place as soon as possible, and then lets him lie flat, physically cool down, replenish moisture (salt water is the best), etc. At the same time, call 120 for first aid in time, and the treatment cannot be stopped on the first aid route. How to prevent heat stroke?
When outdoors, the objective factors that affect people's heat stroke are mainly: the average daily temperature, relative humidity and maximum temperature.
If the daily average temperature is > 30°C and the relative humidity is > 73%, the probability of heatstroke will show a significant upward trend. If the maximum temperature is ≥37°C, the number of people with heat stroke will increase sharply. If you meet two of these conditions before going out, you should pay attention.
In addition to this, it should be noted that alternating hot and cold can easily cause heatstroke, and the body cannot adapt at once, and may also cause temperature regulation disorders, water and electrolyte balance disorders, and heatstroke nerve disorders.
For people who need to work abroad for a long time or whose working environment is stuffy and impenetrable, it is best to prepare some salt water, ice cubes, etc. in advance.
In addition, when people are in heatstroke, they usually show signs of heatstroke, which are generally symptoms such as headache, dizziness, thirst, excessive sweating and weakness in the limbs. If transferred to a cool and ventilated place in time, physically cool down and replenish moisture (salt water is best), it can be recovered in a short period of time. Pay attention to maintaining adequate sleep and drinking more water. When warning of high temperature, try to go out as little as possible.
(Comprehensive Science Popularization China, The Paper)
Author: Bao Yongting
Source: Oriental Network
