핸드폰 많이 보면 기미가 심해질까? 사소하지만 기미를 심하게 하는 것들 알려드립니다. - 피부과전문의 닥터피부광

Doctor, I saw it somewhere, but when I look at my smartphone, my freckles get worse. Is this true? Oh, that's a little controversial. I'll tell you exactly in the back. Hello, I'm Dr. Skin Light, a dermatologist, until the day your skin shines. Today, I'm going to talk about the habits that worsen freckles in everyday life. And there's a saying that blue light worsens freckles. Let's look at some more scientific evidence for this. The first habit of worsening freckles is not to block UV rays. It's common sense that UV rays worsen freckles. I don't have to say it for a long time. It's better not to go out between 10 to 4 p.m. when the UV rays are strong. When you go out, use a sunscreen that is SPF 50 or higher, and use a product called Broad Spectrum that blocks UV rays in a wide range. And don't forget to reapply it once every two hours. It's also good to use a physical sunscreen that can physically block UV rays. The second habit of worsening freckles is washing your face. If you have freckles, they can get worse even with a little irritation. That's what washing your face is all about. If you use a strong surfactant to wash your face, the skin barrier will be washed down too much, and it will damage, dry, and irritate the skin, which can worsen the freckles. Likewise, when you wash your face, you don't just use your hands, but you use a device that helps you wash your face. In this case, it can physically irritate and damage the skin barrier too much, which can worsen the freckles. Next, if you use cleansing tissues, chemical peeling products, or physical peeling products with scrubs that can damage the skin barrier, Likewise, it can damage the skin barrier, irritate the skin, and worsen the freckles. If you have freckles and are sensitive, it's better not to use these products. And after washing your face, we remove moisture with a towel, right? If you rub it like this and wipe it off, the act itself damages the skin and irritates the freckles. Even when removing moisture with a towel, don't rub it like this. Put the towel on your face and press it like this to absorb the moisture. After washing your face, there are times when you apply toner, right? At that time, there are times when you put toner on a cotton pad and rub it like this to wipe it off. This can also irritate the skin and damage it. So it's better not to use a toner that wipes it off like this. The third habit that worsens the freckles is using the wrong cosmetics. The first one is not moisturizing enough to make the skin dry. When the skin becomes dry, the skin barrier is damaged, the skin lacks moisture, and the inflammation of the skin becomes worse. Then, our skin is prone to pigmentation and freckles. It's good to moisturize your skin well enough to keep it moist. Next, there may be products that contain a lot of irritating ingredients in cosmetics. When you use such a product, your skin may be irritated and your freckles may worsen. It would be better not to use products that irritate the skin, cause allergies, or cause acne. Next, the fourth habit that worsens the freckles is women's hormones. When we give birth, the freckles get worse, and sometimes the freckles get brighter after the menopause. It is well known that estrogen worsens the freckles. When you take contraceptives among young women, there are times when female hormones are contained in the contraceptives. In addition, there are cases where women are prescribed and taken before and after menopause. In that case, it's natural that the freckles can get worse because women's hormones are added to our bodies. And even if you don't take female hormones with drugs, there are times when you eat female hormones without realizing it. In this case, if women eat a lot of plant-based female hormones in nutritional supplements or health supplements that we take, It's a little more energetic, and the skin looks a little more lively and better, so sometimes we add these ingredients. So there may be nutrients that contain a lot of plant-based female hormones such as pomegranates in collagen or health supplements that you enjoy eating. In that case, there is a chance that the freckles will worsen because you eat a lot of female hormones while eating those nutrients. So it would be better not to take these female hormones. Next, the fifth habit that worsens the freckles in everyday life is related to blue light. Blue light is the light that corresponds to a wavelength of 380 to 780 nanometers. So if we look at the rainbow, we can see the colors of red, orange, green, blue, and yellow. But at this time, the wavelength outside the purple is called ultraviolet light. It's an invisible ultraviolet light in our eyes. And then the wavelength outside the red, the light that we can't see, is called infrared. But around this ultraviolet light, about 380 to 500 nanometers of light is similar to blue. So before the ultraviolet light reaches the ultraviolet light, the blue light in our eyes is called blue light. When we look at the sky during the day, the sky looks blue. At this time, there are a lot of blue lights coming into our eyes from the sky. But recently, a lot of electronic devices have been used, and blue light is coming out of cell phones, tablets, monitors, and TVs. And there's been some controversy over blue light lately. There's also a controversy about the eyes, but I'm not going to talk about the eyes in this video. When blue light is tightened on the skin, it increases active oxygen in our skin, increases inflammation signals, and increases pigmentation on the skin. So if you have freckles, if you look at your cell phone, TV, or computer monitor for a long time, There's a possibility that the freckles might get worse because of the blue light. So a professor did a research on this and published it as a paper. If you really have freckles, if you use your cell phone or computer a lot, will the freckles get worse? Let me introduce you to the research results. So if you look at this research, the blue light from the sun is 7,700. On the other hand, the blue light from the TV is 78, and the computer monitor is 22, and the laptop is 15, and the second is 7.2. And the blue light from the cell phone was about 11. So compared to the blue light from the sun, it's about 1 in 100 to 1 in 1,000. So I actually gave one side of my face to people with freckles, and I gave the blue light to the other side. The amount of blue light I gave at this time is the same amount as the blue light from a very strong monitor that I gave 8 hours a day. When I did that, I saw if the freckles were getting darker, but they didn't get dark at all. So if you look at the graph, the mint color is the side that gave the blue light, and the purple is the side that didn't give the blue light. But if you look at it, you can see that there's no difference. So it's true that if you put blue light directly on your skin, it can cause pigmentation, but when you put it on your cell phone or computer monitor, you can conclude that it doesn't worsen the freckles. But using a cell phone can also worsen the freckles. The reason is that if we use a cell phone at night, it affects our sleep. So some cells in our eyes send signals to the brain to control the hormones when they receive light. So it plays an important role in controlling the hormones that wake up in the morning, sleep at night, and adjust the cycle of our body in 24 hours. The nerve cells in the eyes react to the blue light. So if we put blue light in our eyes, the melatonin decreases. And then if you put blue light on for 24 hours, the sleep cycle becomes very messy. So this is called sleep-inducing delay disorder. When you sleep and wake up, you keep getting pushed back. Then you can't sleep well at night, so you easily get annoyed, depressed, anxious, and your emotions are out of control. In conclusion, if we use a cell phone at night, it reduces melatonin secretion, reduces the quality and amount of sleep, and makes our skin bad. In the previous video, I told you that if you don't get enough sleep, your skin turns red and dark. And in the case of melatonin, when UV rays come to our skin, active oxygen is created and melanin pigments are increased. But melatonin has an antioxidant effect and also has the effect of suppressing melanin pigmentation. But if melatonin is reduced, this antioxidant function and anti-melanin effect will be reduced, so our skin color will darken and the freckles will worsen. Also, if melatonin is reduced, estrogen secretion will increase, and then the freckles will worsen due to estrogen. So, in conclusion, the blue light of our cell phone, tablet, or computer monitor does not directly worsen the freckles, but it can worsen the freckles by disturbing our sleep before going to bed. Then what should we do? Before going to bed, it would be better to refrain from using digital devices such as cell phones and tablets. If you look at your cell phone, there is a dark mode or a blue light block mode. It would be better to use that to reduce the blue light, and it would also be helpful to use the brightness of the entire cell phone in a dark way. In this video, I talked about the habits that worsen freckles in everyday life. If you are taking care of your freckles and getting treatment at the hospital, but your freckles are getting worse, then check out these five habits I mentioned. So I hope you become a subscriber who shines in your skin. Until the day your skin shines, I was a dermatologist, Dr. Skin. If this video was helpful, please subscribe, like, and set notifications.