The body temperature is 36 degrees. Why is it so hot when it is over 30 degrees?

36~37 ℃ is the core temperature of the human body, while the skin temperature of the human body is only 32~33 ℃, and the distal extremities are lower (which is why we choose armpit and anus for temperature measurement). The normal operation of human body functions needs to maintain a certain metabolic rate, and metabolism is to produce heat. According to the law of thermodynamics, heat is transferred from high temperature objects to low temperature objects. In order to ensure the stability of the core temperature of the human body, it is necessary to maintain a certain temperature difference between the ambient temperature and the body surface temperature to meet the release of human metabolic heat to the outside air. The article originates from a two-day blog- https://2days.org/2162.html

Therefore, it is unnecessary to wait until the temperature rises to 36 ℃. As long as the ambient temperature is close to the body surface temperature (32 ℃ up and down), the body will start the sweat glands to dissipate heat, and a large amount of sweat will be taken away by evaporation latent heat To keep the body temperature normal. If the air is dry and the sweat evaporates quickly, the body will not feel too uncomfortable. If the air is humid and the sweat cannot evaporate smoothly, the heat is difficult to be taken away, and the human body will feel very hot, which is why the hot and humid weather is very difficult. The article originates from a two-day blog- https://2days.org/2162.html

The article originates from a two-day blog- https://2days.org/2162.html

Another reason is the race factor. Most of us Chinese are of the yellow race. After leaving Africa tens of thousands of years ago, the ancestors of this race evolved for a long time in the extremely cold Central Asia and Siberia, and later moved south to occupy the land of China today. As a result of living in extremely cold areas for a long time, our ancestors evolved (compared with other races) relatively thick trunks, relatively short limbs, round and large heads, flat faces, and thick subcutaneous fat There are fewer sweat glands, which are not conducive to heat dissipation due to their adaptation to cold climate. Naturally, it is normal for us to feel very uncomfortable when facing the high temperature weather of more than 30 degrees. The article originates from a two-day blog- https://2days.org/2162.html

The article originates from a two-day blog- https://2days.org/2162.html