Why do some people sweat more and others sweat less? 6 kinds of abnormal sweating may be a disease signal, pay attention to
Some people sweat easily when they sit still when the weather is hot. And some people show no signs of sweating even after exercising for more than ten minutes.
Some people say that sweating is because of physical weakness, and some people say that it is related to thyroid function. What is it like? Why do some people sweat more and others sweat less?
1. Does sweating a lot mean the body is weak?
Sweating is a physiological function to maintain normal body temperature, and the reason why we sweat is related to the body temperature balance .
The normal body temperature of the human body is 36.0℃-37.0℃, once it exceeds this range, it is easy to feel uncomfortable. The temperature of the external environment, exercise and other factors can increase our body temperature, so we need to adjust the body temperature balance through skin sweating to dissipate heat.
The amount of sweating is mainly related to the sweat glands of the body. There are about 4 million sweat glands in the human body, and the number and location of sweat glands vary from person to person. Generally speaking, people with more and more developed sweat glands sweat more, and people with high basal metabolism are more likely to sweat. So under normal circumstances, sweating more does not mean that the body is weak.
2. I also sweat after eating, is it normal?
Sweating during eating is actually a kind of gustatory sweating , which is a normal sweating phenomenon.
There are special taste receptors and abundant nerve endings distributed in the oral mucosa and the back of the tongue of the human body. When eating and chewing, it will stimulate the sympathetic nerve excitation, causing sweating around the mouth, forehead, face and even the whole body. When ingesting hot or spicy food such as alcohol and coffee, it is easy to cause a sweating reaction.
In addition, the following are also normal sweating conditions.
· Postpartum sweating
Women increase blood volume by 40% during pregnancy, and hormones can also cause the body to retain excess water and sodium. Women will return to normal hormone levels after giving birth, and the circulatory system needs to reduce capacity to relieve pressure and reduce the burden on the heart. The body will expel excess water from the body through sweating and urination. Therefore, postpartum There will be noticeable sweating.
·Mental sweating
Mental sweating is caused by the transmission of nerve impulses from the cerebral cortex to the sweat glands through the sympathetic nerve, thereby enhancing the secretion and excretion function of the sweat glands. The sympathetic nerve is an autonomic nerve that is not controlled by the human will . Anxiety, excitement, etc.
· Sweating when you have a fever
Fever and sweating is a self-protection mechanism of the human body. Fever and sweating can take away body heat and lower body temperature. Sweating when you have a fever indicates that your body has a better ability to regulate. If you don't sweat, it may accumulate heat in your body and affect your health.
· Menopause sweating
After women enter menopause, the level of estrogen in the body will drop, and the brain cannot accurately control the body's thermostatic system. At this time, it is easy to have sudden body heat and redness, hot flashes spread all over the body, the heart beats fast, and it recovers after a few minutes. This feeling of hot and cold is called hot flash sweating. Hot flash sweating is a common sweating during menopause. Happening.
3. Sweat is a "barometer" of health
Although sweating is a normal metabolic manifestation, in some cases, it may indicate certain diseases.
1. Excessive sweating for no reason
There is no obvious incentive, and a lot of sweating is caused by hyperhidrosis . Hyperhidrosis is a kind of disease that causes local sweat gland hyperactivity, wet hands and spontaneous sweating, which often occurs in the hands . , armpits, and soles of feet.
Hyperhidrosis seriously affects the daily life of patients. Currently, there are two main methods for treatment: CT-guided bilateral thoracic sympathectomy and thoracoscopic bilateral thoracic sympathectomy.
2. Persistent sweating all over the body
Continued sweating all over the body, accompanied by mental tension, restlessness, palpitations and hand tremors, eating too much but losing weight and other symptoms may be caused by hyperthyroidism . Thyroid hormones can control the speed of energy utilization by the human body to a certain extent. It will enhance the body's metabolism, generate a lot of heat, thereby increasing the amount of sweating.
**## 3. Night sweats
She likes to sweat at night , and also has symptoms such as insomnia, fatigue, dizziness and headache, which may be caused by sex hormone imbalance. In men over the age of 55, this condition may be due to low androgen levels. Night sweats in middle-aged women may be an early sign of menopause.
4. Various symptoms of abnormal sweating
Abnormal sweating in the upper body such as the head, chest, and back may be a sign of diabetes, but this is often the case when diabetic patients develop autonomic neuropathy.
5. cold sweat
When the blood sugar of the human body is too low, the sympathetic nerves of the body are stimulated, a large amount of adrenaline is released, and then cold sweats occur. The reason for the low blood sugar may be related to frequent dieting, excessive exercise, and taking some drugs.
6. No sweat
There is little or no sweating of the whole body or certain parts, and symptoms such as dizziness, weakness, facial flushing, etc., need to be alerted to the occurrence of anhidrosis or hypohidrosis .
In addition, normal sweat is generally colorless or slightly yellow. If sweat changes color, what are the possibilities?
When copper poisoning occurs, the sweat will appear light blue, taking potassium chloride will make the sweat red, and eating too much egg yolk, carotene and other foods will deepen the yellow color of the sweat.
4. Is the effect of sweating better when exercising?
Many people mistakenly believe that the more you sweat during exercise, the better the effect and the more weight you can lose. In fact, sweating during exercise is only a way for the body to dissipate heat. The amount of sweating is affected by factors such as ambient temperature and humidity, exercise intensity, and personal physique . Most of the sweat is water, not fat , so the more you sweat, the less you sweat. Represents greater fat consumption.
In addition, sweating has nothing to do with detoxification of the body . At present, there is no strong evidence to support the statement that "sweating is detoxification". Although to a certain extent, sweating can excrete metabolic wastes from the body, but the effect is very small. Urine is the main way for the human body to excrete metabolites from the body.
Sweating is a normal physiological phenomenon, but if there is abnormal sweating, you must be vigilant to avoid serious illness.
references:
[1] "Who is healthier for people who like to sweat and those who don't like to sweat? 》. Tencent Medical Code. 2021-08-26
[2] "4 kinds of abnormal sweating may be a disease signal! 》.Jingyitong.2021-11-04
[3] "The palms are always sweating, is it sick? Abnormal sweating on the body may be caused by 5 major reasons, but many people ignore it ...". I am a big doctor official WeChat. 2021-07-10
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