Why does the wet and cold weather in the south make people feel colder? Is ant manor radiating quickly or is it a psychological illusion?

It is said that the temperature in the north is lower in winter, but northerners still feel very cold in the south because it is wet and cold. So why does the wet and cold weather in the south often make people feel colder? The following small series brings the answer to the question of Ant Manor 165438+ 10/0/9.

Ant Manor165438+1October 19 Question: Why does the wet and cold weather in the south often make people feel colder?

Correct answer: Heat loss is faster.

Analysis: Due to the high air humidity in the south, the somatosensory temperature is much lower than the actual temperature, and the heat is dissipated quickly. The air in the north is dry, and the somatosensory temperature will not be too low, so wet and cold in the south will be more uncomfortable than dry and cold in the north.

We can't directly sense the temperature, but we can sense the heat loss rate of human body. The relative humidity of air affects the exchange rate between water on the body surface and water vapor in the air, and then affects the heat loss rate.

When the weather is cold, high relative humidity will make it difficult for sweat on the body surface to evaporate, but the effect is opposite to that at high temperature, because moisture adheres to the body surface and clothes, which will not only destroy the heating layer formed by clothes, but also lead to faster heat loss on the body surface due to the high specific heat and fast heat transfer of water.

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