Rickets, Childbirth, and the Evolution of Light Skin
When we look at the range of human skin tones across the globe we are seeing a long-running evolutionary response to competing needs: protection from ultraviolet (UV) radiation and the requirement to make vitamin D. Vitamin D is a hormone-like nutrient produced in the skin after exposure to ultraviolet B (UVB) light; it helps the
Rickets, Childbirth, and the Evolution of Light Skin Read More »