Some people sweat easily when they sit still when it’s 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?

I. Does sweating a lot mean the body is weak?

Sweat is a physiological function to maintain normal body temperature, the reason why we sweating 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.

Second, I also sweat after eating, is it normal?

Sweating during eating is actually a kind of gustatory sweating, which belongs to Normal sweating.

Special taste receptors and abundant nerve endings are distributed in the oral mucosa and the back of the tongue. When eating and chewing, it will stimulate the sympathetic nerve excitation, causing the surrounding of the mouth and the forehead. The face even sweats all over the 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 situations.

• Postpartum sweating

Increases in women during pregnancy 40% of blood volume, hormones also make the body retain too much water and sodium. Women will return to normal hormone levels after giving birth, and the circulatory system will need to reduce capacity to relieve pressure and reduce the burden on the heart.The body will sweat and excrete urine through two main ways To expel excess water from the body, there will be noticeable sweating after childbirth.

• mental sweating

mental sweating It 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.This sweat The phenomenon occurs mostly in the state of mental stress, anxiety, excitement and so on.

• Sweat with fever

Fever and sweating is a self-protection mechanism of the human body. Fever and sweating can take away heat from the body 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.

• menopausal sweating

women After entering 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 will recover after a few minutes. This feeling of hot and cold is called hot flash sweating. Hot flash sweating is a common sweating condition in menopause.

Third, sweat is a “barometer” for health

Although sweating is a normal metabolic manifestation, in some cases, it may indicate certain diseases.

1. Excessive sweating for no apparent reason

There is no obvious trigger, profuse sweating Situational vigilance is caused by hyperhidrosis, a condition in which the sympathetic nerves are overexcited, causing localized sweat gland hyperactivity, wet hands and A disorder of spontaneous sweating, which often occurs in the hands, armpits, and soles of the feet.

Hyperhidrosis seriously affects the daily life of patients, currently mainly through CT-guided bilateral thoracic sympathectomy Surgery and thoracoscopic bilateral thoracic sympathectomy.

2. Continuous sweating all over the body

Continuous sweating all over the body, When accompanied by symptoms such as nervousness, restlessness, palpitations and hand tremors, eating too much but losing weightIt may be caused by hyperthyroidism, and thyroid hormones are at a certain level It can control the speed at which the human body uses energy. Once the secretion is too much, the metabolism of the human body will be enhanced, a large amount of heat will be generated, and the amount of sweat will be increased.

3. Night sweats

NightLove sweating, and also have 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 perspiration

head, chest, back, etc. Abnormal upper body sweating can be a sign of diabetes, but is often seen in people with diabetes who have autonomic neuropathy.

5, in a 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 there is a cold sweat. The reason for the low blood sugar may be related to frequent dieting, excessive exercise, and taking some drugs.

6. No sweating

Infrequent sweating or No sweating, and dizziness, weakness, facial flushing and other symptoms, need to be alert to the occurrence of anhidrosis or hypohidrosis.

In addition, normal sweat is generally colorless or yellowish.If sweat changes color, what are the possibilities?

When copper poisoning occurs, sweat will appear light blue, taking potassium chloride will make sweat red, ingesting too much egg yolk, carotene Waiting for food will deepen the yellow color of sweat.

Fourth, during exercise, the more sweat, the better the effect?

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 sweat is affected by factors such as ambient temperature and humidity, exercise intensity, and personal physique.Most of sweat is water. It’s not fat, so more sweating during exercise doesn’t mean more fat is consumed.

Also,sweating has nothing to do with detoxing the body, there is currently no powerful Evidence supports the saying that “sweating is detoxing”. 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 abnormal sweating occurs, you should be vigilant to avoid serious diseases.

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