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Vitamin D, skin, evolution

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  • Vitamin D, skin, evolution



    Think about your skin


    http://www.youtube.com/watch?v=QOSPNVunyFQ


    TED is the best.


  • #2
    1



    that was "wonderful"

    It's grandma, but you can call me sir.

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    • #3
      1



      Great video. I'm brown skinned myself living in a high-latitude region, must remember to take my cod-liver oil.

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