Posted by Jack Boyd on April 27, 1999 at 19:09:31:
In Reply to: Re: clusters and addicts and alcoholics posted by drummer on April 27, 1999 at 17:51:17:
There are some things that are known about clusters.
They are a true vascular headache, hence the unfortunate medical lumping with migraines.
There are also hormonal, neurological and genetic components.