What happened to the salt-like clothes on my back after sweating?

After sweating, clothes like salt on the back are salt formed by sweat crystallization. Sweating is accompanied by some sodium, which is the main component of salt as we know it, and some other metabolites. When the sweat on clothes gradually dries, salt crystals will appear.

Sweat components can be divided into inorganic components and organic components, both of which are metabolites in the body. Inorganic components are mainly salts such as sodium chloride and calcium carbonate, some of which are acidic and some are alkaline. Excessive accumulation of these acid and alkali components will directly corrode the skin, destroy the tissues and cells of the skin, and lead to skin aging.

Extended data

The moisture content in sweat is 99%, and the solid content is 1%. Most of them are sodium chloride, but there are also a few potassium chloride and urea. Secretory human sweat contains blood group substances.

Sweat components can be divided into inorganic components and organic components, both of which are metabolites in the body. Inorganic components are mainly salts such as sodium chloride and calcium carbonate, some of which are acidic and some are alkaline. Excessive accumulation of these acid and alkali components will directly corrode the skin, destroy the tissues and cells of the skin, and lead to skin aging.

The function of sweat is to regulate body temperature. Think about it carefully, the human body is really like a precise machine. If you don't sweat, that's not good. As soon as you exercise, your blood circulation will speed up and your body temperature will rise. Naturally, you will sweat and your body temperature will drop. When it is cold, sweat glands and pores contract, thus stopping sweating and preventing body temperature loss.

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