Why are skin tones different?

People have different skin colors mainly because their melanocytes produce different amount and kinds of melanin. The genetic mechanism behind human skin color is mainly regulated by the enzyme tyrosinase, which creates the color of the skin, eyes, and hair shades.

Why am I getting lighter as I get older?

Skin may become lighter as we age because melanocyte stimulating hormone (MSH) declines. The skin may become translucent due to a lack of dietary absorbance of key vitamins and nutrients as we age.

Why do women have lighter skin than men?

Recent Comments. One hypothesis proposes that lighter skin in women first arose as a byproduct due to the actions of differing levels of hormones in the sexes—with men obviously having higher levels of testosterone, making them darker them women. So according to this hypothesis, light-skinned women evolved since men could tell high-quality…

Is there such a thing as light skin in Africa?

“When people think of skin color in Africa, most would think of darker skin,” Tishkoff says, “but we show that within Africa there is a huge amount of variation, ranging from skin as light as some Asians to the darkest skin on a global level and everything in between.”

Why do men and women have different skin color differences?

Skin color differences between men and women first arose to ensure women enough calcium for lactation and pregnancies. Since skin pigmentation protects against UVR but also must generate vitamin D, it must be light or dark enough to ensure ample vitamin D production in that certain climate, along with protecting against the UVR in that climate.

Why did light-skinned women evolve to be light-skinned?

So according to this hypothesis, light-skinned women evolved since men could tell high-quality from low-quality mates as well as measure hormonal status and childbearing potential, which was much easier to do with lighter- than darker-skinned women.