Americans may glorify eternal youth but neuroscientist Dr. Daniel Levitin says our older years can be just as rewarding and healthy. In his groundbreaking book, “Successful Aging: A Neuroscientist Explores the Power and Potential of Our Lives,” the cognitive psychologist draws upon 25 years of research to share with readers why some of us age better than others. In layman’s language, Levitin offers five keys to aging well and tools to put into practice for anyone 55 or older. In his push to change the way society thinks about aging, Dr. Levitin address retirement and the notion that failing memories and depression will affect most seniors. You may be surprised to find the age at which most people find they are at their happiest!