Four seas entertainment news: women want their face white and clean, but freckles always like to appear on the face, especially pregnant women face freckles more, so how to form freckles? Four seas net small editor in this collation of the formation of freckles, for you to see, I hope you can get something in the reading process!
≫ & gt; & gt; click next to view freckles
The cause of freckles
1. Ultraviolet
It stimulates melanin in the skin and induces skin lesions such as freckles. Even in cloudy days, 'ultraviolet' is still strong. Ultraviolet rays can cause skin darkening, aging and wrinkles. The reaction of human skin to ultraviolet rays, in terms of acute reaction, is to cause skin redness, tanning reaction and increase skin thickness. In terms of chronic reaction, it will lead to skin aging. In summer, if you still want to have pure and flawless skin, you should do a good job in sunscreen, especially when the UV index reaches 7 or above, it is more likely to hurt your skin, you should especially strengthen sunscreen, and don't worry about trouble in the future.
2. Some sensitive foods
Some foods are also the bane of skin blackening. Foods rich in copper, iron, zinc and other metal elements have this disadvantage. Because these metal elements can directly or indirectly increase the quantity and activity of tyrosinase, tyrosinase, dopaminequinone and other substances related to melanin production. These foods mainly include animal liver, animal kidney, oyster, shrimp, crab, bean, walnut, black sesame, raisin, etc.; potatoes, sweet potatoes, celery, leek, coriander, coriander, etc. are eaten too much, and spots are easy to be produced by ultraviolet irradiation; Another example: red beans are also a very sensitive food, such as carrots, papayas, oranges, mangoes, etc., which are rich in B-carotene. Because they eat too much yellow, they are prone to pigmentation or yellow complexion.
3. Smoking and drinking
Smoking and drinking are harmful to the skin. If you pay attention, you may find that the face of people who have the habit of smoking will look darker and the color of their lips will also be darker. That's because smoking will lead to pigmentation. If you drink alcohol regularly, it will cause a burden on the liver, and it is also easy to show on the skin, except for the darker skin, the cheeks It is also prone to spots, and will deepen with age.
4. Some diseases
Many diseases can change the normal skin color, make it black, or even long spots. Among them, the most common diseases are endocrine system diseases, chronic consumptive diseases, malnutrition diseases and so on. These diseases may induce the skin to turn brown or dark brown, which is more obvious in the exposed parts such as the face, back of hand and joints, or in the parts such as pressure and friction. Another example: chronic liver disease, may induce facial chloasma or orbital darkening. In addition, melanin in melanosis patients is also mostly accumulated on the face, especially in the forehead, cheek, back of ear and neck, which is very obvious. There are also skin diseases, especially those caused by food allergies, such as seafood, green onion, raw garlic, chili, pepper, leek, wine, fish, shrimp, kelp, chicken, duck meat, pig's hoof, pig's head meat and other foods. Due to individual differences, skin allergies may also be induced to some individuals, resulting in rashes, leaving pigmentation and darkening the skin 。
5. Some drugs
Many drugs can change the normal skin color. About 10% of patients taking quinine have blue pigment spots on their faces. Among the sedatives, chlorpromazine is the most dangerous to the skin color. For long-term users, butterfly spots appear on the face and neck, and palm grey, light blue or light purple appear on the arms. In addition, repeated use of ointment containing mercury can also leave brown pigment in the affected area. Among the anti-cancer drugs, there are more drugs that cause skin color changes, such as: malilan can make skin color turn brown red, bleomycin can produce melanin accumulation and so on.
6. External force action
External force acting on the skin may also be an inducement. Some people like to rub the skin forcefully when bathing, aiming to wash it more cleanly, but they don't know that excessive force or repeated rubbing can also cause the skin to turn black, which is called "friction blackening disease".
How to prevent freckles
Freckles is a common skin disease on the face, which occurs in the face, neck, back of hand and other parts of the sun. The disease originated in preschool children, a few from puberty, more women than men, with family history. The lesions are mostly round or oval yellowish or brown spots from the tip of a needle to the size of a sesame. The number of spots is uncertain, scattered or dense, symmetrical distribution, no fusion, no conscious symptoms, and the course of disease is slow. In summer or after sun exposure, the color deepened, the number increased, and in winter, the number decreased. It is often seen in women with fair skin.
Should often take foods rich in vitamins, such as litchi, walnut, watermelon, honey, pear, tomato, etc., should also eat foods rich in vitamin E, such as cabbage, carrot, eggplant, rapeseed oil, chicken liver, etc.
1) Usually, excessive sunlight should be avoided, especially in summer. Sunshade or use sunscreen when going out.
2) Eat fresh fruits and vegetables rich in vitamin C and vitamin E.
3) Avoid photosensitive drugs and foods, such as psoralen, Methoxypsoralen, etc.
4) Keep the mood comfortable and happy; avoid the mental state of worry and depression.
5) Do not use medicine casually; if necessary, please use medicine reasonably under the guidance of the doctor.
99 pharmacists kindly remind you to avoid exposure to the sun when you go out. UV radiation can easily cause freckles, so it is important to take sunshade measures when you go out.