Why can't you remember where you put your keys? Or the title of the movie you saw last week? Or the name of your favorite restaurant? Acclaimed journalist Cathryn Jakobson Ramin takes readers on a lively journey to explain what happens to memory and attention in middle age. Along the way, she turns up fresh scientific findings, explores the dark regions of the human brain, and hears the intimate confessions of high-functioning midlife adults who--like...