For half a century, many experts have recognized a link between Alzheimer's disease and aluminum. Since there was no definite proof, there has been no agreement in the scientific community. Now, however, a new study published in the Journal of Trace Elements in Medicine and Biology may provide the proof needed of aluminum's role in the mind-robbing disease. Professor Chris Exley of the U.K.'s Keele University is sometimes known as "Mr. Aluminum" for his research. "I consider the latter as a mark of respect," he says. "I have been researching and thinking about aluminum for over thirty years, and I have published in excess of 150 scientific papers on this subject." For more than 10 years, Exley