Posted by John Bown (206.165.44.73) on July 16, 1999 at 20:12:09:
In Reply to: why posted by duane on July 15, 1999 at 23:31:16:
As has been pointed out, vasodialation is an effect of a cluster attack, not the cause. I believe alchohol is a powerful trigger because it produces almost immediate relaxation. Relaxation and sleep are my second-most powerful trigger.
There may be a better reason, but that's my theory for now.