In the November 1993 article in the Townsend Letter for Doctors, Dr. Michael A. Weiner, executive director of the Alzheimer’s Research Institute emphasized the irreversible effects of aluminum exposure, when he stated “… aluminum has been known as a neurotoxic substance for nearly a century. The scientific literature on its toxic effects has now grown to a critical mass. It is not necessary to conclude that aluminum causes Alzheimer’s disease to recommend that it be reduced or eliminated as a potential risk. It is the only element noted to accumulate in the tangle-bearing neurons characteristic of the disease and is also found in elevated amounts in four regions of the brain of Alzheimer’s patients.”  Some studies suggests that humans can regulate about twenty milligrams of aluminum ingestion per day.  Unfortunately, we are exposed and ingest more aluminum than our system can regulate.