Ever Wondered Why Yawning Is Contagious?
Posted in Blogroll on February 26, 2007 | 3 Comments »
Before you start reading this article, quickly grab a pen and a piece of paper. And record the number of times you yawn while reading this. Anything to do with yawning causes you or someone else to yawn. Looking at videos of people yawning, listening to audio tapes of yawning or even reading material on [...]
