. It covers the whole body’s skin and is a natural barrier to protect the body. About 2-5 million sweat glands are covered on the skin. Among them, apocrine glands were distributed in the armpit, nipple and near the hair root of the pudenda; Small sweat glands are densely covered all over the skin. Sweat gland is an important device for regulating body temperature. In hot summer, the heat dissipation of the body mainly depends on small sweat glands. When the temperature rises to 30 ℃, sweat glands begin to secrete sweat. When the temperature is higher than 35 ℃, sweat more. According to statistics, when a person works in a high temperature and high humidity environment, he can secrete 6000-8000 ml of sweat day and night, and take away 3480-4800 kcal of heat. If a person’s sweat glands have problems, such as extensive burns, destruction of sweat glands, or failure of sweat glands for other reasons, the excess heat in the body will not be discharged, affecting health. When the ambient temperature is higher than 35 ℃, the body temperature will rise. When the body temperature exceeds 41 ℃, there will be no heat in the body, resulting in the damage of some cells, and the thermoregulatory center will lose its regulatory ability; If the body temperature reaches 43 ℃, people will die within a few hours.
you see, sweat glands are closely related to health. So, how can we ensure the normal function of sweat glands in summer?
1. Preventing sweat gland fatigue is the key.
99% of the sweat secreted by sweat glands is water, and the rest is sodium chloride, potassium chloride, water-soluble vitamins and urea. Summer is hot, sweating too much, these substances are lost more, especially sodium is lost most. Sodium can “command the sailors”, and too much sodium is lost, it is unable to “command the sailors”, which makes the sweat glands secrete sweat continuously. If salt is not supplemented in time, over time, the sweat glands will be tired and affect their normal function. Lack of salt in the body and excessive loss of water will cause imbalance of water and electrolyte, and the thermoregulation center will also fail, resulting in heatstroke, which will seriously endanger life. Therefore, we should pay attention to dietary nutrition in summer, reasonably allocate meals and supplement salt in time. Usually eat some fresh vegetables and fruits to supplement vitamins and minerals. Drink some warm water or light salt after working for many times; Watermelon is a good product for relieving summer heat. It enjoys the reputation of “natural white tiger soup”. Eating it every day is of great benefit. At the same time, do a good job in labor protection, heatstroke prevention and cooling in the working environment, and try to reduce sweating. In this way, sweat gland fatigue can be prevented.
II. Pay attention to the cleanness and hygiene of the skin
in summer, the exposed skin is very easy to get dirty. If you don’t pay attention to hygiene, dust and dirt are very easy to block the sweat holes and affect the sweat excretion, which not only easily causes the inflammation of the cuticle of the sweat holes, but also leads to the rupture of the sweat pipes and forms prickles. If bacteria invade and infect, it will become prickles or boils and carbuncle. Therefore, we should take a bath often to keep the skin clean and make the sweat gland duct unobstructed. But bath should pay attention to science. After working or strenuous exercise, some people often jump into the pond or river to take a bath with a lot of sweat; Some people rush at the tap water for a moment’s pleasure. This practice is harmful and unhelpful. Because the body produces more heat during labor or exercise, the body temperature rises, and the skin sweat glands and subcutaneous blood vessels dilate. If you suddenly jump into the cold water, the cold stimulation will constrict the subcutaneous blood vessels and block the sweat holes. It will not only produce prickly heat, but also be very prone to colds, acute joint pain and other diseases, which will seriously cause limb paralysis. Therefore, you should rest for half an hour and wait for the sweat to fall down before taking a bath or shower. It’s best to use warm water.
III. often take part in physical exercise and “three baths”
, that is, air with daily bath, cold bath and other forms of exercise, which can increase the body’s heat resistance, improve the body’s skin resistance and adaptability to the environment, enhance the function of sweat glands, normally secrete sweat, regulate body temperature and protect body health, Have a pleasant summer.