Nutritional supplements, memory exercises, and other purported prevention methods for Alzheimer's Disease may not be effective. A panel of researchers reported these findings at the recent National Institutes of Health State-of-the-Science Conference in Bethesda, MD.

According to the Alzheimer’s Association, an estimated 5.3 million people in the U.S. have Alzheimer’s disease, costing a total of nearly $172 billion every year. The disease results in a decline of cognitive functions, including memory, learning and reasoning.