Boyd Haley, former chairman of the chem dept at the U of KY
explains more of the related chemistry & links to neurological illnesses. http://www.myspace.com/video/vid/7383821
When you take a mercury chelator for detox it will get into saliva and enable more of the Hg to get absorbed into the body. Andy Cutler and Dr Dan Pompa discuss that in this audio interview. http://www.healthcentersofthefuture.com/DrCutler/
Hg fouls up the immune system. There is no quick fix when a person has been struggling for a long time, but over time people report that their gut problems get better.