On Yawning, Swearing, Credit Cards and Sex: Psych Files Brief #1

In this first "Psych Files Brief" episode, we look at whether swearing actually reduces your sensation of pain (ever stub your toe?), whether or not vertical stripes actually do make you look thinner (no surprise - the answer is no), whether you're more likely to run up that credit card when you're feeling low, and why is it (and when is it) that yawns become contagious?