It is understood that there are about 3 million sweat glands in the human body. One side effect of L-carnitine is the secretory part, which can secrete sweat. The other end is the excretory part, which is directly opened on the skin surface and is called sweat hole. The discharge of sweat has the function of regulating body temperature, and also discharges some metabolic wastes. Under normal circumstances, sweating is a reflex activity, and the secretion of sweat glands can be caused by warm stimulation or mental stress. When heat causes blood vessels to dilate, water in blood transfers heat to the skin surface, and then evaporates with sweat to transfer heat to the surrounding environment. In the high temperature environment, the daily sweat output of human body can be as high as 8- 12 liters.

Of course, some diseases can also cause sweating. If you have rheumatism or tuberculosis, you will sweat a lot. Encephalitis sequela is often accompanied by sweating. If this happens, you should go to the hospital for relevant examination in time. There is not much basis for the view that "sweating is just to lose weight", because the process of sweating is mainly to emit excess heat in the body. A lot of sweating causes the body to lose water and can only temporarily lose weight. The real weight loss should be to reduce fat, exercise properly every day and consume a certain amount of calories in order to achieve effective weight loss.

Regarding sports sweating, you should also pay attention to the following situations.

It is easy to get heatstroke if you don't sweat during exercise. Many people often don't sweat much after thirty or forty minutes of exercise, but the skin surface is very hot. This is because the sweat in the body can't be discharged, which leads to the imbalance of body temperature regulation. If you feel fever, you should stop exercising immediately, otherwise you will be prone to chest tightness and dizziness. At this time, you can drink some ice water, apply a cold towel to your forehead or urinate in time, which can reduce your body temperature.

Sweat like rain when exercising, be alert to rheumatism. Many people think that the more you sweat during exercise, the better the exercise effect. In fact, a lot of sweating will take away potassium ions, sodium ions, salts and other substances in the human body. For people with poor constitution, excessive sweating may lead to dehydration, dizziness, abdominal pain and other symptoms. In addition to poor physical fitness, you will sweat profusely when you do non-sweating exercises such as walking and playing Tai Ji Chuan. You should go to the hospital to check whether there is rheumatism.

Don't take a bath immediately after sweating. At the end of exercise, the human body is still in a state of vigorous metabolism and vasodilation of the skin. At this time, if you take a bath immediately, the skin will be stimulated, and the skin blood vessels will contract through nerve reflex, but it will make it difficult to dissipate heat and raise the body temperature.

Reduced blood flow to the skin will increase the blood flowing back to the heart, thus increasing the burden on the heart. Because sweat contains more sodium chloride, so sweat should be supplemented with salt and calcium. Therefore, after exercising in summer, you should drink some salt water properly, and then rest for about 1 hour before taking a bath. Of course, it is best to take a bath with warm water.

You won't lose weight if you don't sweat. Wrong, it is not that the more you sweat during exercise, the better the effect. No sweat, no effect. Now let's listen to the opinions of experts and reduce misunderstandings!

Sweating during exercise is not as much as possible.

Many people sweat when they exercise a little, while some people often exercise for a long time without sweating much. What the hell is going on here? Experts said that under normal circumstances, the greater the intensity of exercise, the more perspiration, but the amount of perspiration varies from person to person. People with more sweat glands sweat more. Drinking water before exercise also has an effect on sweating. If you drink plenty of water before exercise, it will lead to an increase in body fluids and sweating.

In addition, it depends on the physical quality of the individual. People with strong physique have relatively healthy muscles and motor organs. Even if they exercise hard, they have no effort and naturally sweat less. On the contrary, people with poor health will sweat a little.

Experts say that collagen exercise is not the more you sweat, the better, as long as you sweat slightly, and moderate exercise is the most important. Exercise can consume calories, improve microcirculation and adjust the sensitivity of body nerves. People always regard sweating as the essence of exercise, but sweat-free exercise can also prevent or reduce the risk of various chronic diseases. Research shows that working in the garden every week 1 hour can reduce the risk of heart attack by 66%. Walking 1 hour per week can reduce this risk by 73%. In the Netherlands, people who walk or ride bicycles at least 1 hour per week have a 29% lower mortality rate than those who are inactive, and can also help reduce the risk of stroke, diabetes, dementia, fractures, breast cancer and colon cancer.

Therefore, although exercise is the best way to lose weight, we should also pay attention to methods. The limit of quantity should not be excessive, otherwise it will only get twice the result with half the effort.