When was the last time you had a slap-your-knee, bent-over-at-the-waist, crying-your-eyes-out laugh? Enter Loretta Laroche, one of the funniest women in America, who says "relax...you're going to die anyway!" She sits in with Dr. Oz, Lisa, and Dr. Mike for a look at the role of humor in healing, how stress causes death and what you can do to lighten up...but not just when you're standing on the scale.