A.J. Jacobs on chewdism - the best way to chew your food
April 30, 2012 11:46 AM
A.J. Jacobs, author of "Drop Dead Healthy: One Man's Humble Quest for Bodily Perfection," talks to Jeff Glor about a growing health movement called chewdism that encourages people to chew their food 50 times a mouthful.