Can people stand the high temperature of 40℃

In the absence of cooling measures, 40 degrees has exceeded the tolerance limit of human beings and is generally unbearable. According to international experiments, the comfortable temperature of human body is 19℃~24℃ in summer and 12℃~22℃ in winter. Therefore, in the hot summer, when the humidity is high and the temperature reaches 34℃, people need to pay attention.

Generally, after working continuously for two or three hours at the temperature of 33℃, the sweat glands, as the "air conditioner" of the human body, will start to start, and the accumulated body temperature will be emitted through slight sweating.

When the surrounding environment is at 35℃, the superficial veins of human body will expand, the skin will sweat slightly, the heart rate will accelerate and the blood circulation will accelerate. At this time, local cooling will be started to avoid discomfort.

When the temperature reaches 38℃, many organs of the human body will participate in cooling activities. When the temperature rises to this temperature, it is difficult for the human body to maintain normal body temperature through sweat glands, and the lungs will "gasp" to dissipate heat and the heart rate will increase.