A leading researcher hopes to monitor millions of people online in a long-term study to find out who is at risk for Alzheimer's disease. Michael Weiner, MD, a professor at the University of California, San Francisco, has created the website www.brainhealthregistry.org, which encourages people to take free brain function tests twice a year and hopes to find candidates for Alzheimer treatment trials. Weiner, who earned his MD degree at Upstate in 1965, explains how Alzheimer‘s differs from normal memory loss and how he helped create the world‘s largest Alzheimer‘s research project.