yawn.

Last night, a rerun of MythBusters tested whether or not yawning is contagious. Without watching the show, my gut feeling is that it is. But I think it's even more than just yawning because you see someone else yawn. From my experience, yawning can be caused simply by thinking about yawning.

For example, maybe while reading this blog, you yawned. Maybe if someone talks about yawning, you yawn. Maybe if, you thought about a yawn in the back of your mind, and... you yawned! This is just my observation.

What do you think?