Age? Stress? Heredity?

March 15th, 2005 · 10 Comments

Gray Hair

What causes gray hair?

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10 responses so far ↓

  • 1 scientist guy @ U of C // Mar 15, 2005 at 7:29 am

    I’ve heard that gray hair is the result of a loss of melanocytes in the root of the hair (the cells that make the keratin). The loss of these cells could be the result of poor health, diet, stress, age, or is random. In other words, the molecular aspect is known, but the true cause is not known because there are too many environmental variables.
    http://www.dana-farber.org/abo/news/press/2004-12-23.asp
    http://www.sciencemag.org/cgi/content/abstract/307/5710/720

  • 2 yingele // Mar 15, 2005 at 8:33 am

    It comes from Tsoros… ;-)

  • 3 rachelle // Mar 15, 2005 at 9:39 am

    tsoros?

    im glad my gray hairs dont show up as much as the one in this photo!

  • 4 mom // Mar 15, 2005 at 10:28 am

    Gray hair? I’m glad I don’t have gray hair.

  • 5 rachelle // Mar 15, 2005 at 10:31 am

    good joke

  • 6 Richard // Mar 15, 2005 at 12:01 pm

    I don’t have any gray hair. Mine are all white, and every time I get a haircut there are more and more.

    Who’s hair it that?

  • 7 andrew // Mar 15, 2005 at 2:04 pm

    mine are growing more and more populous, and because they’re wirier than my other hair, they insist on sticking out from my head at a perfect 90 degree angle. it’s quite sad, really… i’m only 26.

  • 8 dave // Mar 15, 2005 at 3:32 pm

    as total coverage seems to be dropping, I’m finding I’m less selective on color…

  • 9 Trish Riddle Lange // Mar 15, 2005 at 3:40 pm

    I’m pretty sure that my kids are responsible for mine…

    Trish

  • 10 Mr. Smith // Mar 18, 2005 at 1:44 pm

    I may be 30 but I’m neither balding or graying. My eyesight and hearing is starting to go but thank goodness for small favors.

    Whose hair IS that?

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