Folic acid is needed for an embryo's nervous system to form correctly, so pregnant women who get too much sun are more likely to have babies with brains and spinal cords that are not formed correctly. Also, too much sun causes people to use up Of sun are in greater danger of getting skinĬancer and cataracts (a cloudiness in theĮye). People who live in areas where there is a lot Some genes tell you to make more or less of it, other genes tell it where in your body to go. The more of this substance you have, the darker you can be. An evolutionary anthropologist named Nina Jablonski helped solve this mystery in theĪll come from a pigment called melanin. A trait that isīetter in one environment could be worse in another. This is a good example of the influence of theĮnvironment on natural selection. You always want to see a certified practitioner who has worked on brown skin before.Why almost people in Europe have blue eyes and However, there are some machines, like the Nd:Yag, that are better for darker skin tones. When you have dark hair and a dark complexion, it's harder for the lasers to distinguish between them, which can lead to burns or scars. This is also something to keep in mind when you consider laser hair removal treatments. “When you do things like laser, you’re applying heat that damages the melanin layer and can inflame the skin, further exacerbating a pigmentation issue and leaving behind that post-inflammatory hyperpigmentation.” “We use certain resurfacing and fractionated resurfacing lasers for wrinkles and tightening, but we’d use caution on darker skin,” says Desai. While fair skin patients can handle laser treatments to get rid of brown spots or wrinkles, darker skin must be cautious using these types of machines. Be careful-laser treatments aren't always OK for dark skin.
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