Loading your video.
Yawning is contagious, we all know it. Why it happens is a little less clear. There have been studies surrounding empathy and how that effects your susceptibility to a yawn, but honestly I think it's just one of those things we may never fully understand. Yawns are more contagious than the common cold, but at least they don't last as long!
Tag a friend to make them yawn!
