Your skin is completely renewed once a month, and it is estimated that you may shed about a kilogram of skin a year, enough to fill a large cookie jar. Skin is not only closely related to our health, perfect skin is an important part of the appearance level, then these skin related cold knowledge you know?

1. Drinking from a water bottle will give you wrinkles. Are you in the habit of drinking eight glasses of water a day? Dr. Grossman, a dermatologist in New York, found that puckering up when you drink from a water bottle increases wrinkles in the mouth. Therefore, it is recommended to carry a reusable bottle and spout so that when drinking outside, you can pour water directly into your mouth without making a sucking action. In addition to drinking from a water bottle, the act of smoking a cigarette and pursing your lips when taking pictures can increase the wrinkles in your mouth.

Two, the butt is much better than the skin on the face. Can we do an experiment, compare the back of our hands to our faces and see which skin is better? The back of most people's hands will be more white than the skin on the face, in fact, the skin on our body, including the butt is far better than the skin on the face. This is because our face is often wind and sun and rain for a long time, especially the ultraviolet radiation in the sun makes the skin light aging, and the skin on the body has clothes to cover the aging is not so fast.

3. There's a sun crisis everywhere. Don't think that just because you hide in your office and get a car to and from work every day, you're immune to the sun! UVA can penetrate the glass of the office, home and car, causing damage to the skin, so you should pay attention to the sun protection at all times, so that you can successfully become a beauty master.

The dirtier the skin, the better. We tend to think that the cleaner the skin, the better, but the truth is that it is better for us to have a lot of normal bacteria living on our skin. "If you wash your hands repeatedly, your hands become dry -- partly because you're removing all the oil, but also because you're removing a lot of the bacteria that help maintain your skin," Professor Mark Field, a medical microbiologist at Kingston University, said: "If you overuse detergents (soaps), which remove some microbes and leave others in the dust, this can lead to problems such as dermatitis." This is why the incidence of atopic dermatitis in highly developed countries and regions is higher, the original is too clean caused trouble!

Five, oranges eat too much skin will be yellow. This is because oranges are rich in carotene, once ingestion of too much carotene, the liver can not be completely decomposed, the concentration of carotene in the blood is too high, will be deposited in the skin stratum corneum and mucous membrane parts, there will be skin yellow. But don't worry, this is only temporary and will not affect your health. As long as you temporarily do not eat yellow vegetables and fruits (such as carrots, pumpkins), after a week or two will return to normal.

Six, the total red face is also skin disease. If goodbye can not be red eyes, can still be red face? Red cheeks look very cute, but you know what? If you are hot or in the sun, nervous and excited face rub a red like a rose, rest a few minutes later and then recover, your face is hot, and over time you can see a root of red blood, you are likely to be rosacea. Rosacea incidence is now more and more high, and there is a certain hereditary, although there is such a nice name, but the face of rosacea often red, hot, dry, and even feel stinging, very distressed, very affect our quality of life.

Seven, eating pig feet can supplement collagen? We Chinese people have always paid attention to what to eat to make up what, many fairies also like to eat pig feet, so what braised pig feet, bean braised pig feet, sauce pig feet are not a question, all income in the belly. Is it true that eating pig feet can replenish collagen? The truth is just a beautiful legend. Pig feet do contain a lot of collagen, but it is unrealistic to eat pig feet to achieve collagen on the face. So when the pig feet are eaten, they are digested into amino acids, which are then transported throughout the body to re-synthesize needed proteins. On the contrary, often eating pig feet will also lead to obesity, high blood fat. Therefore, if you want to achieve collagen in your face, you should stay up late less, exercise more, and drink more water. Finally, many medical and beauty treatments can also promote the regeneration and synthesis of collagen in our skin.

8. Brush mascara to create wrinkles. When you brush your eyelashes, it's really bad! Many girls can't help but raise their eyebrows when they brush their eyelashes, which affects the skin of the forehead, and it is easy to form forehead wrinkles in the long run. In fact, just slightly open the lips, brush the upper eyes to see below, brush the lower eyes to see above. It also makes you look sexier if you happen to be surrounded by a man who appreciates you.

9. Relax when you exercise. Many women unconsciously contract their chin and throat when they work out at the gym, which not only makes the neck contours, but also makes the skin of the face sag.

Ten, homemade mask may not be easy to use and environmentally friendly. In fact, once fruits and vegetables are cut, they oxidize faster than you can absorb them! Moreover, many substances in fruits and vegetables are harmful to the skin, such as acidic substances in pineapple and lemon can stimulate the skin, and light-sensitive substances in spinach and celery can induce solar dermatitis. Even if some fruits and vegetables on the face will not cause harm to the skin, but the benefits are very limited, such as cucumber on the face only slight hydration effect.