Why don't I sweat when the weather is hot

When people talk about summer, they associate it with heat. Due to the high temperature in summer, people will sweat profusely as soon as they go out. Sweating is because the pores of the human body open to dissipate heat and maintain normal body temperature. However, some people just don’t sweat, even in the hot summer. Many friends call these people people with cold body or people who are not afraid of heat. But what is the real situation? Today I will take you to understand in detail why you don’t sweat even when the weather is hot?

one. Reasons for not sweating

1. Or there is a disorder in the function of sweat glands

The human body's sweat glands are distributed all over the skin, with the most abundant distribution in the armpits, palms, soles of the feet and forehead. When certain reasons cause sweat gland hypoplasia or even lack of sweat glands, it may lead to systemic or local anhidrosis.

2. Or you have skin disease

The location of sweat glands is between the subcutaneous tissue and the dermis. When some people suffer from serious skin diseases, their skin is easily damaged. When the skin damage reaches the subcutaneous tissue, it will affect the sweat glands. So that the skin has no sweat or little sweat.

Skin diseases will affect the excretion of sweat, and conversely, impaired sweat excretion can also cause skin diseases. Sweating is a way for the body to excrete toxins. Not sweating will result in some toxins being unable to be excreted, causing pores to become clogged, thus causing skin diseases.

Common skin diseases include ichthyosis, scleroderma, leprosy, radiation dermatitis, skin atrophy, etc.

3. Or nerve damage

Sweat glands are controlled by the sympathetic nerves to secrete sweat to regulate body temperature and excrete waste. When the sympathetic nerves are damaged, the secretion of sweat will be affected. Damage to the cerebral medulla can cause ipsilateral segmental anhidrosis or temporary anhidrosis below the injury; increased inhibition of the hypothalamus by the cerebral cortex can lead to systemic anhidrosis.

This is a pathological change caused by the disorder of blood supply and regulation of nerve control. Chinese medicine calls it Qi and blood deficiency. Treatment must start from the nerves, strengthen the blood supply to the affected nerves to nourish the nerves, and use nerve regeneration drugs to excite and activate the nerves, so as to regenerate and repair the nerves and restore sweat gland secretion.

4. Or it may be caused by disease

Hypothalamic tumors or damage to the floor of the third ventricle can cause systemic anhidrosis and high fever; diseases of the lower brainstem can cause anhidrosis on the same side of the face and neck; diabetes insipidus, alcoholic neuritis, amyloidosis (amyloidosis refers to a disease caused by the deposition of amyloid substances in tissues or organs), diabetes, and gout can cause anhidrosis, which may be caused by the blockade of the innervating ganglia caused by the above diseases. For anhidrosis caused by this condition, it is key to treat the disease first.

5. Or vitamin A deficiency

Lack of vitamin A causes eye and skin lesions. The main skin lesions are dry skin and keratinization of hair follicles, which lead to less or even no sweating.

6. Or physical weakness

Not sweating may be due to ahidrosis, which is related to physical weakness and deficiency of Qi and blood.

Kidney Yang deficiency: No sweating, hands and feet easily become cold, no matter how much exercise you do, you don’t sweat. Being afraid of cold is a sign of weak body vitality, which is mostly caused by kidney Yang deficiency. When Yang Qi is deficient, Qi cannot circulate blood, so blood cannot reach the extremities of blood vessels. The extremities of the body, namely hands and feet, will become cold.

Kidney Yin deficiency: No matter what the circumstances, there is no sweat on the whole body, only the palms and soles are hot, slight sweating, weight loss, hot flashes, fever in the five hearts, dry throat and red cheeks, etc.

two. The dangers of not sweating

1. Sweating in summer or after exercise is a process of energy consumption. If you don't sweat or exercise on a hot day, and eat greasy meals, the excess energy will be converted into excess fat, causing obesity, hyperlipidemia, arteriosclerosis, fatty liver, diabetes, etc.

2. Sweating less or not sweating or poor sweating on a hot day will affect the body's fluid circulation and metabolism; taking in more, consuming less, and excreting less will make people prone to edema, phlegm, and depression; not sweating for a long time will also affect urination, resulting in less urine or frequent trips to the toilet without much urine, but no problems with the urine routine test.

3. If you have skin diseases, it will affect the excretion of sweat. In fact, sweat excretion disorders can also cause skin diseases. Sweating is a way for the body to excrete toxins. Not sweating will cause some toxins to be unable to be excreted, resulting in clogged pores and causing skin diseases.