# White Hair...

**URL:** <https://boards.straightdope.com/t/white-hair/402832>\
**Category:** Factual Questions\
**Created:** [May 5, 2007, 12:17am UTC](https://boards.straightdope.com/t/white-hair/402832 "2007-05-05T00:17:45Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![outside\_artist](https://avatars.discourse-cdn.com/v4/letter/o/7993a0/32.png) [@outside\_artist](https://boards.straightdope.com/u/outside_artist)\
**Post date:** [May 5, 2007, 12:17am UTC](https://boards.straightdope.com/t/white-hair/402832/1 "2007-05-05T00:17:45Z")

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I recently read a factual book in which someone underwent such trauma that his hair turned completely white overnight. I have heard of this, but I never believed it actually happened. What exactly causes this, biochemically speaking, that is?

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**Author:** ![Shagnasty](https://avatars.discourse-cdn.com/v4/letter/s/9dc877/32.png) [@Shagnasty](https://boards.straightdope.com/u/Shagnasty)\
**Post date:** [May 5, 2007, 12:23am UTC](https://boards.straightdope.com/t/white-hair/402832/2 "2007-05-05T00:23:32Z")

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It doesn’t. Well sort of.

[http://www.straightdope.com/classics/a2\_315b.html](http://www.straightdope.com/classics/a2_315b.html)

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**Author:** ![outside\_artist](https://avatars.discourse-cdn.com/v4/letter/o/7993a0/32.png) [@outside\_artist](https://boards.straightdope.com/u/outside_artist)\
**Post date:** [May 5, 2007, 12:50am UTC](https://boards.straightdope.com/t/white-hair/402832/3 "2007-05-05T00:50:16Z")

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Oh, silly of me to not have checked Cece first, but thank you.  
This makes me wonder about the veracity of the rest of the volume.