Mask of Emotion displays your feelings via LED emoticons, we cry/laugh/yawn. joshua fruhlinger. Editorial Director. Updated Fri, Jun 6, 2008, 12:32 PM.

The science behind yawning and its mysterious behavior 03:38. Humans aren't alone when it comes to yawning — all vertebrates do it too, including fish, amphibians, reptiles, birds and mammals ...

New research suggests an answer to why people yawn. July 30, 2007 — -- It can signal tiredness, boredom or even rudeness, and everyone does it. But, now, a new science may explain why people ...

The instructions changed people’s perceived need to yawn, and the way the yawns were expressed—people told not to yawn tended to stifle them. But the overall number of yawns remained constant.

Even thinking about yawning can cause you to do it. It’s something everybody does, including animals, and you shouldn’t try to stifle it because when you yawn, it’s because your body needs it.

Yawning around the world is a contagious prank. By William Goodman. May 28, 2013 / 6:05 PM EDT / CBS News (CBS News) The body has a ...

Yet we also yawn during times of stress: Olympic athletes often do it before a race, while musicians sometimes succumb before a concert. So some researchers, including Provine, ...