It's very hot and my stomach is sweating.

When we engage in intense activities or are suddenly frightened, we often sweat. In hot summer, especially in dog days, if there is a ball game, we will still sweat profusely. So, how can people sweat? Sweat is secreted by sweat glands. You should know that there are two kinds of sweat glands in the human body: one is the apocrine gland, which is distributed in the armpit, breast, navel, thigh heel and vulva, and opens near the hair root; Another eccrine gland is distributed all over the body and opens on the epidermis. An adult has about 2 million to 5 million eccrine glands, with an average of 120- 130 per square centimeter. Sweat is colorless and transparent, which contains 99% water, 65438 0% solids, mainly sodium chloride, and a small amount of potassium chloride and urea. Under normal circumstances, only a few sweat glands participate in secretion activities, and the sweat discharged is not much, which is not easy to be detected. Under very hot conditions, the amount of perspiration per hour can reach more than 1.5 liter. The role of sweating should not be underestimated. When sweat evaporates, it can take away more heat and has the function of regulating body temperature. Sweat can also soften the cutin of the skin and moisturize the skin. Lactic acid in sweat can inhibit the growth of bacteria and prevent the occurrence of skin diseases. Sweat can also excrete metabolic waste and regulate the balance of water and salt in human body. If the human body sweats too much, it will affect the balance of water and salt in the body, so drink some light salt water and replenish water and salt in time.