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SUPER SCIENCE

Why does our hair turn white when we get older?

作者:TEENS
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为什么我们老了头发会变白?



 

Our hair has a kind of pigment (色素). It is called melanin (黑色素). Melanin gives our hair a black color. When we get older, the pigment cells die. The hair has less melanin. It turns white or gray.

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