Let's start at the beginning. Who yawns? Everybody. Not just people, but cats, dogs and fish do, too! What is a yawn? It is an involuntary action during which you open your mouth and breathe deeply ...

ATLANTA — Find yourself yawning a lot? Do you need that third or fourth cup of coffee to make it through the afternoon at work? Such signs of sleepiness may be a red flag of a serious sleep deficit ...

It may look like the body's sign of saying you’re bored or sleepy , but yawning could be telling you more than that. Clinical research suggests that yawning isn’t always trivial. Repeated yawning has ...

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 ...