Why do you sweat more in summer?

Generally speaking, it is normal to sweat more in hot summer, but if you sweat too much, it will reduce the flow of blood circulation and slow down the circulation, thus reducing the heat dissipation of the human body and leading to an increase in body temperature. Sweating a lot will also cause the loss of salt in the human body, and the cells will cause heat spasm due to lack of sodium.

What is the harm of sweating too much?

1, loss of nutrients. Sweating for a long time, zinc, selenium, manganese, iron, copper and other essential trace elements in the human body are gradually lost, which leads to the delay of children's growth and development and the decline of adults' physique.

2. Immunity declines. People who sweat a lot are prone to catch a cold, sneeze, stuffy nose, runny nose or diarrhea.

3. The digestive function is weakened. It is characterized by poor appetite, anorexia and emaciation.

4. Intellectual development is limited.

Children sweat for a long time, the essential elements in the body are slowly lost, the development of nervous system is affected, attention is not concentrated, and intellectual development is impaired. There is a kind of person who doesn't shed a drop of sweat even on a hot day. This symptom is called "anhidrosis".

Why are you sweating in summer?

1, according to physiological and pathological points

(1) Physiological sweating. The weather is hot, sweating after a lot of exercise is a physiological phenomenon and a physiological function of human excretion and body temperature regulation, which is controlled by sympathetic nerves in the autonomic nervous system. When the ambient temperature or body temperature exceeds the set point of body temperature, in order to prevent the body temperature from rising further, the sympathetic nerve is excited, dominating the secretion of sweat glands, and the sweat evaporates to take away heat, thus lowering the body temperature. Sweat gland secretion is closely related to exercise intensity, and sweating has individual differences.

(2) Pathological hyperhidrosis.

Night sweats occur when you sleep at night, and you sweat unconsciously.

(2) Spontaneous sweating, which occurs during the day, is unnatural due to labor, thick or hot clothes, or sweating after a little exercise.

2, according to the primary and secondary points

Primary hyperhidrosis refers to the excessive secretion of sweat glands caused by no obvious reason, which is a autonomic nerve dysfunction caused by excessive secretion of sweat glands. Secondary hyperhidrosis is caused by some neuroendocrine and other systemic diseases (such as hyperthyroidism, diabetes, hypoglycemia, cardiovascular diseases, respiratory failure, etc.). ).

3, according to the sweating area

Hyperhidrosis can be divided into systemic hyperhidrosis and local hyperhidrosis. Systemic hyperhidrosis is mostly secondary hyperhidrosis, and local hyperhidrosis is mostly primary hyperhidrosis.

Sweating is a physiological function of human body to excrete and regulate body temperature, but if the way of sweating, the amount, color and smell of sweat change, it can be regarded as a precursor of some diseases and should be paid attention to. The following is an explanation of some common sweating phenomena from the perspective of traditional Chinese medicine:

spontaneous perspiration

It is not because of the sultry weather, taking sweating drugs and other stimulating factors that you often sweat. This situation is called "spontaneous sweating". Spontaneous sweating is mostly caused by weak lung qi deficiency, weak defensive yang qi and leakage of body fluid, so it is often accompanied by symptoms of yang deficiency such as fatigue, burnout, shortness of breath and chills. It is more common in children with rickets and hyperthyroidism.

have night sweat

Sweat when you sleep, and sweat when you wake up. Night sweats are often caused by hyperactivity of yang due to yin deficiency, yin not controlling yang, and sweating in body fluids, so they are often accompanied by symptoms such as five upset, insomnia, dry mouth and throat. Common in patients with pulmonary tuberculosis infiltration.

Hanzhan

That is, sweating after chills is a manifestation of the struggle between good and evil in the process of epidemic febrile disease. After sweating, the fever is gone, the pulse is still, and the body is cold. This is a good phenomenon, indicating that the evil has gone and the vitality has recovered. If the limbs are cold and irritable after sweating, it means that vital qi is invincible, and vital qi goes down with weakness, which is a critical illness. War sweat is more common in the early and middle stages of various infectious diseases.

Easily

It means that when the condition is critical, the vital qi is weak, the yang is about to take off, sweating profusely, accompanied by shortness of breath, cold limbs, weak pulse, and sometimes not critical, which is a sign that the yang will be exhausted, and it is more common in patients with heart failure and collapse.

Head sweating

Sweating is confined to the head. Most of them are caused by pathogenic heat in the upper jiao or damp-heat stagnation and steaming in the middle jiao, which is more common in Yangming heat and damp-heat syndrome. If you see it after a serious illness, or if the old man is panting and sweating, it is mostly empty. For example, a sudden profuse sweating on the forehead at the end of a serious illness is a crisis in which yin deficiency goes up, yin deficiency cannot attach to yang, and yin and body fluid take off with qi. However, children often sweat on their heads while sleeping. If there are no other symptoms, it is not a symptom.

Partial sweating

Commonly known as "half-body sweat". It is located on the left or right, upper body or lower body. They are all caused by wind phlegm or rheumatism blocking collaterals, or poor camp defense, or disharmony between qi and blood. More common in patients with rheumatism or hemiplegia. If the elderly sweat, it may be a precursor to a stroke.

cold sweat

Refers to sweating due to cold limbs. No fever before sweating, no thirst. Often accompanied by listlessness, pale face, loose stool, long urine, slow pulse, pale tongue and other cold symptoms. It is mostly caused by yang deficiency and insufficient defensive qi, and it can also be caused by fright.

In addition, sweaty palms are often too nervous; Sweating in the chest is thinking too much; Those who often sweat in the slightest exercise are either too fat or too weak; The sweat of diabetic patients is slightly fragrant; Sweat of patients with liver cirrhosis has a special taste of liver.