Welcome to the new old age! In the fourth book of her Scientific American series about the brain, Judith Horstman presents a realistic and encouraging overview of the well-aged brain, a sobering look at what can go wrong, and the latest in what neuroscience is finding to help you––and your brain––stay healthy longer. This new and positive message about growing older describes how to preserve what you’ve got, minimize what you’ve lost, and optimize the vigor and health of your brain as you grow older.