"Author of the iconic bestsellers This Is Your Brain on Music and The Organized Mind, Daniel Levitin turns his keen insights to what happens in our brains as we age; why we should think about health span, not life span; and, based on a rigorous analysis of neuroscientific evidence, how you can make the most of your seventies, eighties, and nineties today, no matter how old you are now"-- Provided by publisher.