"Brain freeze"?

CASSIDY-FELTGEN at worldnet.att.net CASSIDY-FELTGEN at worldnet.att.net
Fri Feb 28 10:58:24 EST 1997

Can anyone tell me what mechanism causes the rapid, brief headache pain 
when a cold substance is ingested quickly?  Related to this is my 
question regarding the brain not sensing pain during brain surgery, but 
a person's perception of headaches as localized pain within the brain?
Is this a paradox or are headaches not actually occuring within the 

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