Is 36 degrees high?

The temperature is kept between 365438 0℃ and 34℃. Yesterday, the highest temperature soared to 35℃, and the Municipal Meteorological Observatory issued a blue warning of high temperature. Today, the weather is even hotter. It is expected that the maximum temperature will be higher than yesterday, reaching about 36℃, and the high temperature warning will be upgraded to "yellow". Affected by the cold air from the south, there will be a thunderstorm tomorrow night. Due to the weak cold air, thunderstorm weather will not bring obvious cooling.

Although the highest temperature tomorrow will be around 34℃, the weather will be more sultry because of the high air humidity before the rain. Experts predict that from the first half of next week to Wednesday, the city will maintain high temperature, and the highest temperature in most parts of the city will remain between 35℃ and 37℃. After the slight heat, the air is more humid, and the daily average relative humidity rises to about 70%. The weather is sultry, remind citizens and friends to pay attention to heatstroke prevention and cooling.

When the temperature reaches 37 degrees, it is difficult for the human body to dissipate heat, and people will feel very hot. Under normal circumstances, the human body temperature is kept between 36.5℃ and 37℃, while the outside temperature is usually higher or lower than this temperature. The reason why the human body can keep constant temperature all the time is because it has a constant temperature mechanism, which can adjust or exchange body temperature with the outside world.

There are several ways. One is conduction, which requires some medium, such as air, water and metal. However, air is not the main heat dissipation method because of its poor thermal conductivity. The second is thermal radiation, which mainly dissipates heat directly through the skin. When the body temperature is higher than the outside temperature, it can play a better role. The third is evaporation, including sweating and breathing. Of course, defecation will also release some calories.

But in hot weather, only evaporation can play a better role, so we often sweat a lot, and heat is achieved by sweating a lot. At the same time, human muscles will be in a relaxed state, reducing heat accumulation, so as to keep the body temperature within the normal range.

These physiological reactions are actually controlled by the so-called "body temperature center" of the hypothalamus, which controls how the body adjusts its body temperature with the change of external temperature through the nerves of the whole body. When it exceeds the limit that the human body can adjust, people will suffer from heatstroke or hypothermia, organ function will decline, and even die.

However, as far as high temperature resistance is concerned, experiments have been carried out. In quite dry air, healthy people can stay at 50℃ for two hours, at 70℃ for 15 minutes, and at 100℃ for 1 minute without any damage. However, if you stay in the humid air at 45℃ for 1 hour, you will suffer from heatstroke and coma. Therefore, it can be determined that the high temperature resistance limit of human body is affected by humidity.

At a certain temperature, the lower the relative humidity in the air, the faster the water evaporates, and vice versa. When the temperature and humidity reach a certain limit, the human body's heat cannot be emitted, and the body temperature will rise, exceeding the tolerance limit of the human body, leading to death.