Question

Why do people feel a cooling sensation when they sit under a moving fan after sweating?

Answer 1

1. Sweating is a cooling mechanism naturally present in our body,
2. When our body is hot, it tries to cool itself by releasing sweat through the pores of our skin.
3. The sweat thus released absorbs the excess heat from our body and evaporates. Thus we feel cool.
4. The purpose of the fan is to increase the rate of this evaporation.
5. The fan sets the air in motion, thereby increasing the evaporation of sweat.

Thus, the cooling sensation felt by people when they sit under a moving fan after sweating is due to evaporation.