Keith Fargo, Ph.D., director of scientific programs and outreach with the national Alzheimer's Association, will discuss the difference between Alzheimer's disease and dementia, how biomarkers are changing our understanding of the disease, the race for a blood test for diagnosis, genetic risk, the latest in clinical trials, and modifiable lifestyle factors and what you can do to reduce your risk. No registration required. At the Providence Auditorium; entry on Ninth Ave.