More and more people have begun to ask themselves if they are happy, and if their unhappiness is a disease that can—and should—be treated by medication. Gary Greenberg discusses depression, drawing on medical scholarship, his 25 years as a psychotherapist, and his own experience with depression to show how it has been marketed as a widespread chronic disease, packaged by scientists, doctors, and marketing experts. In Manufacturing Depression: The Secret History of a Modern Disease Greenberg asks what we gain and lose with this approach.