A.J. Jacobs on chewdism - the best way to chew your food - CBS News Video "Drop Dead Healthy" by A.J. Jacobs Jeff Glor talks to A.J. Jacobs about his new book, "Drop Dead Healthy: One Man's Humble Quest for Bodily Perfection," which follows the author trying to become the healthiest man in the world. Jacobs is the man behind the bestselling "The Year of Living Biblically," and "The Know-It-All." In researching the book, he consulted an army of health experts and took in a cartload of diets to offer the reader better habits for a well-lived life, all presented with his trademark sense of humor.