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It is known that dark-skinned people who have moved to climates of limited sunlight can develop vitamin D-related conditions such as rickets, and different forms of cancer. [3] [44] A 2022 study revealed that traits such as dark skin show strong signals for Convergent evolution and selective pressure (positive Selection). [25]
This is an accepted version of this page This is the latest accepted revision, reviewed on 28 January 2025. "Skin pigmentation" redirects here. For animal skin pigmentation, see Biological pigment. Extended Coloured family from South Africa showing some spectrum of human skin coloration Human skin color ranges from the darkest brown to the lightest hues. Differences in skin color among ...
Dark-skinned people, who produce more skin-protecting eumelanin, have a greater protection against sunburn and the development of melanoma, a potentially deadly form of skin cancer, as well as other health problems related to exposure to strong solar radiation, including the photodegradation of certain vitamins such as riboflavins, carotenoids ...
In short, melasma is a chronic skin condition that appears as darkened areas on the face due to an overproduction of melanin, says Gina Charles, MO, a family physician specializing in skincare. It ...
[41] [42] In some regions of India, dark-skinned people are often seen as "dirty" and of lower status than lighter-skinned ones. A light complexion is equated with male and female beauty, racial superiority, and power and continues to have strong influences on marital prospects, employment, status, and income. [43]
A study published in the Journal of Human Evolution proposes that people in the Tropics have developed dark skin to block out the sun and protect their body's folate reserves. Those living away from the equator have developed a fair skin to absorb enough sunlight to maintain adequate vitamin D in their bodies. [7]
“Besides thinning skin and more brown spots, the blood vessels in the dermis also become more fragile with bruising and possibly bleeding under the skin,” says Melissa Kanchanapoomi Levin, MD ...
For starters, Black dermatologists, who may have a greater understanding of darker skin tones, make up roughly 3 percent of the field. Additionally, dermatology isn’t always covered by insurance ...