A.J. Jacobs is a journalist, lecturer, and human guinea pig who has written four bestselling books--including Drop Dead Healthy and The Year of Living Biblically--that blend memoir, science, humor, and a dash of self-help. A contributor to NPR, The New York Times, and Esquire, among other media outlets, Jacobs lives in New York City with his family. He was once the answer to 1-Down in the New York Times crossword puzzle.