In My Age of Anxiety: Fear, Hope, Dread, and the Search for Peace of Mind, Scott Stossel—editor of the Atlantic and author of a 2004 biography of Sargent Shriver—describes his quest to understand his severe anxiety disorder. How severe? Among other things, Stossel fears enclosed spaces, heights, fainting, germs, flying, vomiting, vomiting on planes, and . . . cheese. Here’s a conversation with him.