• Question: why do you get grey hair when you get old?

    Asked by alishawatt1 to Niall, Emma, Jimmy, Janet, Simon on 10 Mar 2013. This question was also asked by penguin123.
    • Photo: Niall Crawford

      Niall Crawford answered on 10 Mar 2013:

      The colour of your hair is made by pigements in the hairs themselves. As you get older, the cells which make the pigment get less active, which causes you hair to lose its colour and become “grey”. It happens at different ages for everyone, depending on genetics (when it happened to your mum and dad), and other factors, such as if you smoke or have poor nutrition from your food.

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