Can you lose weight without exercising and sweating in the heat?

　　There is no scientific basis for sweating to lose weight

　　It is understood that there are about 3 million sweat glands distributed in the human body. One end of it is the secretory part, which secretes sweat; the other end is the excretory part, which opens directly into the skin surface, called sweat pores. The discharge of sweat regulates body temperature and also discharges some metabolic waste. Under normal circumstances, sweating is a reflex activity, and the secretion of sweat glands can be caused by thermal stimulation or mental stress. When heat causes blood vessels to dilate, the water in the blood transfers heat to the surface of the skin, and then evaporates with sweat, transferring the heat to the surrounding environment. In high-temperature environments, the amount of sweat produced by the human body can be as high as 8-12 liters per day.

　　Sweating like rain does not mean the effect is good

　　exercise You have to sweat profusely afterward. If you don’t sweat, you won’t be able to achieve your fitness goals. This is what many people think. However, Coach Huang from China Sports Club explained: Generally speaking, the greater the intensity of exercise, the greater the amount of perspiration. But the amount of sweating varies from person to person.

　　First of all, sweat depends on the secretion of sweat glands, and the number of sweat glands has not only gender differences, but also individual differences; secondly, the amount of sweating also depends on the body fluid content. Some people have more fluids and sweat more during exercise.

　　The amount of body fluid is determined by the content of body fat. Because fat tissue contains less water, obese people have less body fluid than thin people. Although obese people sweat more during exercise, their ability to tolerate water loss is relatively poor, so obese people will feel very tired after exercising for a short period of time.

　　Whether you drink water before exercise also has an impact on sweating. If you drink a lot of water before exercise, it will increase body fluids and increase the amount of sweat. Furthermore, it also depends on the individual's physical fitness. People with strong physiques have stronger muscles and motor organs. healthy , even if you perform high-intensity exercise, it will be effortless and you will naturally sweat less; on the contrary, people with poor physical fitness will sweat profusely if they move a little.

　　Therefore, more sweating does not necessarily mean a better workout. Some non-sweat activities, such as walking and cycling, can also prevent or reduce various chronic diseases. disease For those who sweat profusely after a little exercise, it is necessary to Hospital Check it out.

　　The continuous high temperature makes people miserable. Some people who want to lose weight but are too lazy to exercise secretly rejoice: usually they don't sweat when they don't move, but now they are sweating even when they sit still. It is a good time to lose weight.

　　However, doctors believe that there is not much basis for this statement, because the process of sweating mainly dissipates excess heat from the body, thus causing the body temperature to drop, and the sweat glands themselves only generate very little heat during activity. A large amount of sweating causes the human body to lose water, which can only temporarily reduce weight. Real weight loss should be to reduce fat. Therefore, "sweating every day can reduce weight" should actually be understood to mean that you must exercise appropriately every day, sweat all over, and consume a certain amount of calories, so as to achieve effective weight loss.

　　More people still like to cool down, especially after sweating. When the temperature reaches 33°C, those who can afford it will turn on the air conditioner when they enter the office or return home. Although they can enjoy the coolness, they also pose health risks. For people who have been in an environment with a stable temperature for a long time, the sweat glands are almost idle. If the sweat glands are not smooth, an important detoxification channel will be lost, and an important line of defense for immunity and disease prevention will be lost. Because entering an air-conditioned room from a high-temperature environment, pores suddenly shrink and sweating decreases. Under strong cold stimulation, it often causes an imbalance in the human body's perspiration function. The body has no time to adapt and adjust, and is often prone to disease. cold Or cause gastrointestinal cramps, etc.

　　Will sweating less during exercise affect the speed of weight loss?

　　Excessive sweating and body decline elderly You will sweat less.

　　Sweat is one of the four channels through which waste is discharged from the body. The other three include stool, urine and breathing. This is why it is often said that sweating can detoxify.

　　As we age, our activity levels become smaller and smaller, so a large amount of toxins accumulate in the body. The toxins reduce our body's immunity, thereby causing dysfunction of various organs, accelerating the reduction of the body's immunity, and accelerating the aging process of the human body. Sweating through exercise can break this vicious cycle, so it is very important for everyone to exercise seriously and sweat once a day.

　　You sweat less. This is not a problem at all. There is nothing to worry about. As the weather gets hotter, you will sweat more and more. As the weather gets colder, you will sweat less and less.

　　Therefore, sweating has nothing to do with the speed of weight loss. People who sweat a lot should pay attention to replenishing water in time. Lack of water in the body is also detrimental to weight loss.

　　Do not take a cold shower immediately after sweating during exercise in summer. This is because the temperature is high in summer. Just after exercise, the human body is still in a state of strong metabolism and skin blood vessels are dilated. At this time, if you take a cold shower immediately, the skin will be stimulated by the cold water and will pass through. nerve The reflex causes the blood vessels in the skin to constrict, which can hinder sweating and heat dissipation. On the contrary, it will make heat dissipation difficult and body temperature rise. At the same time, the reduction in skin blood flow causes a sudden increase in blood return to the heart, which increases the burden on the heart.