"We speak to Johann Hari, author of a controversial new book, “Lost Connections: Uncovering the Real Causes of Depression—and the Unexpected Solutions.” He writes, “Junk food has taken over our diets, and it is making millions of people physically sick. A growing body of scientific evidence suggests that something similar is happening with our minds—that they have become dominated by junk values, and this is making us mentally sick, triggering soaring rates of depression and anxiety.”'