Blue light hurts the skin more than ultraviolet light

Blue light refers to high-energy visible light with a wavelength of 400 to 500 nanometers, which is commonly found in computers, mobile phones, projectors, LED displays, laser pointers, etc. Among the seven colors of visible light, the closer the visible light (such as violet and blue light) to the ultraviolet region, the stronger the energy and the greater the damage to the human body. When it comes to the hazards of blue light, many people know that it can cause eye fatigue, dryness, and affect vision health. But in addition, the blue light will "invade" the skin.

　　Blue light can cause melanin deposition in the skin, especially in the granular layer of the epidermis and deeper skin layers, causing the skin to become dark, dull, and spot. At the same time, blue light, like ultraviolet light, will promote the production of more and more active oxygen free radicals in epithelial cells, which will accelerate skin aging, leading to a lack of elasticity and increased wrinkles. In addition, studies have shown that because blue light has a longer wavelength than ultraviolet light, it can penetrate deep into the skin, causing oxidative damage to cell DNA, reducing the production of collagen and elastin, and causing skin problems such as enlarged pores and dark circles. In addition, the blue light will stimulate the brain and inhibit the secretion of melatonin. If you often use electronic products before going to bed, the strong blue light will disrupt the balance of hormone secretion, thereby affecting the quality of sleep, and indirectly causing problems such as dark yellow skin, acne, and hair loss.

　　To resist the harm of blue light, the most important thing is to reduce the use time of electronic equipment as much as possible, and avoid staying for a long time or being in an environment with blue light radiation. In this regard, Zhou Tao suggested that when using a smartphone or tablet at night, the night mode should be turned on to reduce blue light radiation to the human body. At the same time, in daily life, you can eat more foods rich in vitamin A, vitamin E, selenium, β-carotene, etc., which are natural antioxidants. For people who need to face electronic devices such as mobile phones and computers for a long time, it is recommended to take certain measures for proper protection, such as applying mineral sunscreen or foundation.