Social Justice This Is Your Body on Laughter Several new studies exploring the effects of laughter are contributing to a fast-growing body of research that finds just how important it is to keeping us happy, healthy, and sane. Katharine Gammon
Social Justice Why Is Laughter So Hard to Fake? A new study finds acoustic differences between genuine and feigned laughter and explains why we're so good at distinguishing the two. Paul Bisceglio
Social Justice Kidding Yourself Is No Laughing Matter New research finds people who deny their darker impulses laugh less frequently. Tom Jacobs