How to change your mood in 60 seconds

You know that nagging feeling that follows you through the day: what if a sixty-second mental move could dissolve it? Behavioral scientists have uncovered a practice called mental subtraction. It's not about positive thinking. It's a subtle repositioning that lets relief surface on its own. Will it work for you? / Burgers, burgers everywhere (15:30). On the show: Steve, Yushun & Xingyu