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  4. Why does hair change colour with age, eventually going grey?
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Why does hair change colour with age, eventually going grey?

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Erin

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Why does hair change colour with age, eventually going grey?
« on: 09/05/2010 07:30:02 »
Erin asked the Naked Scientists:
   
Dear Chris,
 
I was wondering why and how does hair change colour naturally, particularly grey in old age.

Erin Aged 7.

What do you think?
« Last Edit: 09/05/2010 07:30:02 by _system »
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