What effect does underwear have on human health?

Underwear is in direct contact with human skin, and whether underwear is chosen properly will directly affect the health of skin and even human body.

The heat emitted by the human body through the skin accounts for about 90% of the total heat emitted by the human body. One way to dissipate heat from the skin is to evaporate sweat. Sweat glands of the skin excrete wastes in the body at the same time, so underwear should be soft, warm, non-irritating and harmless to the skin.