From morning stretches to moments of boredom, why do we yawn? And why can't we resist when someone nearby does it too?

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 ...

Researchers believe yawning may serve an important physiological purpose. There is no consensus, however, on what that is. Is it true that we yawn when our brains are deprived of oxygen? Most of us ...

Yawning is one of the most common reflexes in our body. It is usually harmless and mostly indicates tiredness or fatigue. However, excessive yawning can be concerning. When you yawn too much, it could ...

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 ...

Atlas Thébault Guiochon 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 ...