We touch our skin every day, sometimes we feel it is rough, sometimes it is delicate, and sometimes we see a sudden blue patch. Do you know why all this happened? Skin is a protective film covering the outermost layer of the body, which plays a role in resisting bacteria and regulating body temperature. But at the same time, it also reflects the internal problems of the body. Let’s care about the importance of healthy skin.
skin effect
1. Protective effect: the role of the skin is to cover the body and protect the internal organs. At the same time, the stratum corneum also has the function of preventing bacteria from invading. The sebum membrane on the surface of the skin has the function of preventing bacteria from reproducing. For light or ultraviolet rays, which are absorbed by red blood cells and melanocytes, they can prevent ultraviolet rays from directly invading the body. The skin can also protect the internal organs from physical stimulation, and even if they are slightly injured, they can recover.
2. Regulating body temperature: through the changes of blood circulation and sweat, the skin can regulate the external temperature and maintain a certain body temperature.
3. Secretion and excretion: the skin can secrete sweat and sebum, and also excrete some metabolites in the body.
4. Perceptual function: the skin is full of perceptual nerves, which can quickly feel stimuli from outside the body.
absorption effect
5. Absorption: since the skin has the function of preventing foreign matters from entering the body, it does not have a positive absorption effect. However, if some substances are treated to promote skin absorption, it is still possible.
6. Respiratory function: the skin has a positive respiratory function. If it is completely isolated with stuffy substances, people will not survive.
you must pay attention to the following ten skin conditions
1. Palms and feet are yellow. May be due to hypothyroidism, blood β It is caused by the increased level of carotene. The symptoms are yellowish and dry skin, weakness of limbs, slow action, pale and sallow face, and weight gain. Women over 50 years old are the most vulnerable. In addition, if you eat too much carrots, sweet potatoes and pumpkins, your skin will turn yellow easily.
2. Measles in the sun. It is very likely that you took photosensitive drugs. Antihypertensive thiazide diuretics, tetracyclines, antihistamines, and tricyclic antidepressants can make people sensitive to light. After taking this kind of medicine, you’d better wear sunglasses and a sun hat when you go out.
3. Black palmprint. The pigment color of palmprint suddenly deepens, which may be due to insufficient adrenaline secretion. Scars, pigmentation on the skin of lips, knees and joints are typical symptoms. The patient likes salty food and has low blood pressure. People between 30 and 50 years old are the most vulnerable.
4. Large blue lump on the leg. Maybe it’s a varicose vein. In severe cases, the lower limbs swell and ache, lack of strength, and walking is difficult. Among people over 50 years old, 50% have mild varicose veins. Wearing loose socks and avoiding sitting cross legged can alleviate symptoms, and those who are serious must seek medical attention.
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