Posted by JB (64.128.176.121) on August 14, 2001 at 15:47:30:
In Reply to: brain freeze posted by catfish on August 13, 2001 at 18:07:48:
Brain freezes and cluster headaches both involve the trigeminal nerve. When explaining what a cluster is to someone that never had one, I compare it to a severe brain freeze that lasts an hour or so, and then comes back, again and again.