By Deepak Chopra, M.D., FACP, Murali Doraiswamy, MD, Professor of Psychiatry, Duke University Medical Center, Durham, North Carolina and Rudolph E. Tanzi, Ph.D., Joseph P. and Rose F. Kennedy Professor of Neurology at Harvard University, and Director of the Genetics and Aging Research Unit at Massachusetts General Hospital (MGH). The magazine ScienceNews begins a recent…