Adam Gopnik identifies four different types of anxiety that afflict modern people and suggests ways to cure them. "The job of modern humanists is to do consciously what Conan Doyle did instinctively: to make the thrill of the ameliorative, the joy of small reliefs, of the case solved and mystery dissipated and the worry ended, for now - to make those things as sufficient to live by as they are good to experience."

Producer: Sheila Cook.