Especially for girls, they also pay special attention to their own skin sun protection. Everyone wants to have fair skin, and they don't want their white and tender skin to become dark in the scorching sun, but the scorching sun is a ruthless summer day, and sunburn is also a common occurrence for everyone.
The difference is that some people's skin will turn red after sun exposure, but it won't make their skin a few degrees black. On the contrary, some people will turn black after being exposed to the sun, and even their skin will be sunburned. Many people will be confused about this. What is the reason? Let's take a look together.
The problem of skin tanning is mainly the phenomenon of melanin oxidation reaction in the body. Melanocytes are distributed in basal cells of human epidermis, and complex enzymes contained in melanocytes can oxidize complex acids into polysaccharides, and then through metabolic process, melanin is finally produced.
In other words, the more melanin is produced, the darker the skin will be, and conversely, the whiter the skin will be. In addition, when the sun shines on the skin, it can make the human body produce a brown pigment called melanin, which can protect people from ultraviolet rays.
If Mailanning is not metabolized, it will remain black, depositing melanin in the body on the skin surface, and then the skin will turn black.
In addition to the main effects of melanin, it may also be related to the following aspects. I hope everyone will try to avoid it:
1, long-term computer radiation
Life is very fast now. For many office workers, long-term computer work may also be exposed to radiation, resulting in dark and rough skin.
Especially for older female friends, their skin turns black due to the radiation of computers. I suggest you do a good job of cleaning every day to keep your skin stable.
2. heredity
Presumably, everyone has heard of heredity, and people also know what conditions are hereditary, such as appearance, personality, height and appearance. Of course, some diseases are also hereditary.
In addition, whether it is easy to get a tan is also hereditary. The reason for this problem is mainly influenced by genetic factors. Some people have special genes, which may turn black after sunburn, and this gene has similar performance after being passed on to future generations.
3. Eating habits
Whether the skin is easy to get tanned may also have a lot to do with daily eating habits. If you eat some sensitive foods in your life, such as lemons, celery, spinach, leeks, carrots, etc., these foods are more vulnerable to ultraviolet rays when you eat too much, which leads to an increase in melanin content under the skin, black spots and black skin.
Therefore, in order to improve these problems, we must pay attention to eating less photosensitive food in our daily diet. It's best not to move under strong light, so as not to darken your skin.
4, incorrect sun protection
About the easy tanning of the skin, it may also have a lot to do with incorrect sun protection. Although some people can do a good job of sun protection before going out in summer, they find that their skin is still dark for a while, which may also be related to incorrect sun protection.
For people who don't pay much attention to skin care, sun protection is actually a very troublesome thing, so when applying sunscreen, it is also three days to fish and two days to dry the net. If they want to achieve the expected sunscreen effect, they can apply two more layers.
If we are popular in life, we will find that many people in life have fair and ruddy skin. No matter what kind of sunshine, their skin will not turn black, but will turn red.
This may be because there are fewer melanocytes in the body. If it is not easy to tan, the skin will be whiter, indicating that there is less melanin in the body and melanin cannot be produced in time, so the skin is not easy to tan.
On the contrary, people who are prone to tanning have large melanocyte particles in their bodies, and most of the ultraviolet rays directly irradiate the skin after converting heat, and the skin looks dark and bright. So this kind of person, I suggest you don't do activities in the sun in your life.
1 Replenish water in time
As the saying goes, water is the source of life, and more than 70% of human body is water. Under normal circumstances, the drinking water of human body should be kept at about 1500~2000 ml.
However, due to the hot summer temperature and excessive sweating, the amount of drinking water should be no less than 2,500ml, which is more conducive to maintaining water, avoiding excessive water loss, promoting blood circulation, enhancing metabolism, and keeping the body and skin healthy.
2 repair after sun exposure.
Remind everyone that ultraviolet rays and sunlight in summer are very toxic, so when you go out, you must do a good job of sun protection, apply sunscreen and cream, or put on sun protection clothes and umbrellas to better protect your skin and make it look healthier.
After going out and returning home, you should also repair your skin in time, immediately replenish water to your skin and apply a calming, soothing and moisturizing mask.
3. Do a good job of daily sun protection
Sunscreen should be everyone's lifelong habit. Whether it is spring, summer, autumn and winter, whether it is windy, rainy, cloudy or sunny, you should pay attention to sun protection as long as you go out. Sun protection can prevent ultraviolet radiation and skin damage to a great extent, and also help to protect the skin and prevent skin aging.