Is sweat the tears of fat?

I believe everyone is familiar with the sentence "Sweat is tears of fat". Many people really believe this. When you exercise, you won't stop until you sweat. Now Bian Xiao tells you that sweat is sweat and has nothing to do with fat.

To know whether sweating is fat, let's first understand why people sweat.

The temperature of the human body is relatively constant, generally around 37. Once the body temperature is too high, people will have all kinds of discomfort. The temperature of human body is controlled by the temperature regulation center of nervous system. When the body temperature rises, the body needs to dissipate heat to keep it constant. Sweating is a way for the body to dissipate heat. In summer, when the outside temperature rises and the body temperature rises, the body will sweat a lot in order to dissipate heat. When exercising, people also sweat easily. This is because in the process of exercise, nutrients in the body generate heat and provide energy for the body. In this process, heat is generated, which stimulates the regulation of the nervous system and starts the heat dissipation mode, that is, sweating.

98%~99% of sweat is water, and the remaining 1% ~ 2% is a small amount of urea, lactic acid, fatty acids and so on. It can be seen that the fatty acid content in sweat is quite low, and it is a joke to say that sweat is fat tears.

Since fat can't be excreted through sweating, where has all the fat that people lose by losing weight gone? Theoretically, all these fats will be consumed by the human body. For example, we lose weight through aerobic exercise. After aerobic exercise for a period of time, in addition to sugar energy, fat energy will be consumed. Exercise consumes the energy provided by these fats and makes them disappear. As for how these fats leave the human body. Professor Brown has done research. He calculated the weight of the product according to the law of conservation of mass. The results showed that 84% of the lost fat was excreted by breathing, and the other 16% was excreted by urine, sweat, tears or other body fluids. The study was published in the British Medical Journal. According to Professor Brown's research, fat is not so much turned into sweat as it is taken away by our breath.