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 ...

Open your mouth wide, stretch the muscles of your jaw and upper body, take a slow breath in, and then exhale quickly. What have you done? You have yawned. Many animals, including humans, yawn. They do ...

No one is entirely sure why we yawn — it’s one of the questions that still remains a mystery. But that hasn’t stopped scientists from having a few different theories regarding the human urge to yawn.

Teachers might have told you off for doing it, and your parents used it to try to get you to go to bed earlier. It’s rude to do it in a meeting, and seeing someone else doing it (even if they cover ...

Try not to yawn while reading this. (And yes, there's science behind why you yawn when other people do!) Fact checked by ...

DEAR DOCTOR K: I get plenty of sleep. So why do I yawn all the time? DEAR READER: We all yawn frequently, more often in the early morning and late evening. Does it mean we're tired? Bored? Short on ...

Discover why yawning leads to watery eyes, exploring the role of facial muscles and lacrimal glands in tear production.

Do psychopaths yawn? Many studies support the notion that psychopaths don't have contagious yawning, as yawning is associated ...

Yawning is often seen as a simple sign of fatigue or boredom. However, this natural and universal reflex could reveal much more about your hormonal health—particularly your levels of cortisol, the ...