Friday, August 21, 2009

New Scientist asks, "where does white skin come from?"

The popular answer is, light skin developed so humans could produce more vitamin D (dark skin blocks the suns rays that prompt vitamin D production). (New Scientist) Seems to make sense. But some scientists disagree. Their ideas? One, white skin is (for some reason) more resistant to frost bite, so it may have developed to help people adapt to colder Northern temps. Another, "highly controversial," idea is that "once sensitive light skin was no longer hazardous, as in Africa, it was selected for sexual attractiveness."

Pound360 Archive

About Me

My photo
I started pound360 to channel my obsession with vitamins, running and the five senses. Eventually, I got bored focusing on all that stuff, so I came back from a one month hiatus in May of 2007 (one year after launching Pound360) and broadened my mumblings here to include all science.