Why do we Get Ice Cream Headaches

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In this video:

While many theories on what exactly causes ice cream headaches or “brain freezes” have existed for some time, it has only been very recently that it was discovered exactly what is going on here. It turns out, ice cream headaches are a result of a rapid change in the size of blood vessels as a response to an extreme shift in temperature in the roof of the mouth, particularly the back of the roof of the mouth.

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Resources/Further Reading:

http://query.nytimes.com/gst/fullpage...
http://www.divinecaroline.com/22178/8...
http://www.bmj.com/content/314/7091/1...
http://en.wikipedia.org/wiki/Ice_cream

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