The skin is an external organ of the body, and the normal function of the internal systems and organs of the body has a very important impact on the nutrition and metabolism of the skin itself, so healthy skin is a “mirror” of the overall health. The main criteria for judging the health of the skin should include skin color (skin tone), smoothness, texture, moistness, elasticity and its function. The differences in skin properties are mainly related to genetics, gender, age, endocrine changes, nutrition and health status.
Types of skin
The skin of different races and individuals varies greatly, and there are various ways to classify skin types. At present, there are five types of skin based on skin water content, sebum secretion, skin pH and skin reactivity to external stimuli.
1, dry skin, also known as dry skin.
2, Normal skin, also known as normal skin.
3, oily skin, also known as lipid skin.
4. Combination skin is a type of skin that is a mixture of dry, normal or oily. 5. Sensitive skin is also known as allergic skin.
Factors affecting skin health
1, sebaceous membrane: the thickness and nature of sebaceous membrane is affected by age, gender, health status, environment and washing, etc. Generally, the sebaceous membrane is thicker in young men and significantly reduced in the elderly; the sebaceous membrane is thinner in winter than in summer, so the skin is drier in winter and prone to skin cracking and itching.
2, skin acidity: healthy skin is acidic, pH 5.5 ~ 7.0, determined by the sebaceous membrane.
3, the sensitivity of the skin: different types of skin sensitivity to stimuli are different, dry and sensitive skin to a variety of stimulating factors prone to allergic reactions.
4, physicochemical and biological factors: temperature, wind, sunlight, humidity and other factors can affect skin properties; drugs, cosmetics can also cause changes in skin texture, such as long-term use of glucocorticoids can cause skin atrophy, capillary dilation, certain cosmetics can affect the excretion of sebum and acne-like lesions; various microorganisms (such as viruses, bacteria, fungi, etc.) can cause skin infections, thereby affecting the skin The health of the skin.
5, the aging of the skin: including natural skin aging and photoaging.
6.The effect of diseases.
7, other: in addition to the above factors, nutritional status, mental state, sleep status, living habits, nature of work, etc. also have a greater impact on skin traits.
Skin care
1, to develop good habits of life.
(1) emotional stability and relaxation.
(2) adequate sleep.
(3) reasonable diet.
(4) strengthen physical exercise.
2.Strengthen the skin health care: (1) skin cleaning: cleaning the skin should be selected.
(1) skin cleaning: washing the skin should choose tap water, river water, lake water and other soft water, non-irritating to the skin.
(2) the prevention of skin aging: try to avoid strong sunlight exposure, adhere to self facial health care massage to delay skin aging.
(3) hair care: hair should be kept clean, shampoo 1 to 2 times a week is appropriate, the choice of shampoo should be based on the degree of greasiness of the hair, dry hair with protein shampoo, oily hair with weak acidic shampoo, dandruff more can be used when the shampoo containing sulfur, etc., and at the same time, according to the quality of hair with the appropriate conditioner.