Add Yahoo as a preferred source to see more of our stories on Google. So why exactly do we yawn? And why is it nearly impossible to stifle a yawn when someone does it in front of you? Let’s find out.

Yawning seems like such a simple act, yet it holds surprising power over us. Just watching someone yawn — even a stranger — can suddenly trigger the irresistible urge to yawn yourself. Why does this ...

Seeing or hearing someone yawn can make you yawn. This phenomenon is not limited to humans; some animals experience contagious yawning, too. But why is yawning contagious? Brain cells called mirror ...

Johanna Simkin does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Many of the videos suggest social mirroring, which happens when individuals unintentionally imitate the actions of others, along with empathy, may be why some people yawn when they see others do it ...

A lot of us believe yawning is a sign of tiredness or boredom, well, apart from this, yawning is also your body trying to send you a message. Yawning is contagious. Even thinking about yawning will ...

Experts discuss the mysteries of yawning at first ever international conference. —LONDON, June 28, 2010 -- For two days last week, they came to Paris. Over two dozen experts in the field of ...

Why do we yawn? Yawning is a universal gesture. Everyone yawns, from babies still in their mother's womb to the elderly. However, the exact reasons for this reflex are not well understood. Is it just ...

Dear Amy: Is it rude to yawn while talking to someone if you make an honest effort to hide/stifle it, and apologize or say, “Excuse me?” Amy Dickinson I suffer from depression and often don’t sleep ...

Your body has millions of parts working together every second of every day. In this series, Dr. Jen Caudle, a board-certified family medicine physician and an associate professor at Rowan University ...