Why do some people smell so bad after sweating and evaporation in summer? Is there any way to avoid it?

Hello, it is understandable that people stink after sweating in summer. Because human skin is like a natural Petri dish for bacteria. After you take a clean and thorough shower, most bacteria will slip away with the water. But once out of the bathroom, bacteria will re-enter in batches.

The skin is covered with millions of sweat glands. Among them, exocrine glands are almost all over the body, except your palms and soles. When the human body feels heat, the autonomic nervous system will send out a signal, so the sweat glands of the whole body will secrete a mixture of salt and water. As this mixed liquid evaporates on the body surface, people's temperature will drop. However, the apocrine glands of the skin begin to work after puberty, mainly in the armpits, crotch and scalp, and the substances secreted are more complicated.

Physical and mental stress can cause exocrine gland secretion, and emotional stress is closely related to the secretion of apical gland. In addition, some drugs and spicy food can also make you sweat. Sweat gland secretion itself does not stink, but when bacteria (which do not stink) soak in sweat (wet environment is conducive to their growth) and feed on fat and protein mixed in sweat, it will produce unpleasant excrement.

That is to say: what we usually call body odor is actually the smell of bacterial excrement, and of course it is body odor in extreme cases.