So, if you’re having a particularly boring day at work, you might find yourself yawning a lot for one day out of the blue. Stress and anxiety have also been linked to increased yawning.

Humans aren't alone when it comes to yawning — all vertebrates do it too, including fish, amphibians, reptiles, birds and mammals. But why? The "evolutionarily ancient" act of yawning likely ...

It can be! Research shows yawning is extra contagious when it comes with a sound effect: that “ahhh” noise a lot of us make. If a person hears that over the airwaves, it might be enough to ...

Yawning is sometimes associated with fatigue ... eaten through them in a process called peristalsis. When there’s a lot of air trapped in them, the contractions causes the air to make the ...