The exact causes of contagious yawning are still debated, but two leading hypotheses are the nonconscious mimicry hypothesis ...

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 ...

The study resolves: "According to our hypothesis, rather than promoting sleep, yawning should antagonize sleep. It has been ...

There are a lot of contributing factors to the rest gap. Below, experts share their thoughts on why this happens and how to ...

I’ll bet that psychopaths yawn a lot less.’ So I put it to the test.” With this theory in mind, Rundle and his team asked 135 college students to take part in the Psychopathic Personality ...

Yawning, a universal reflex, is characterized by a deep inhalation and short exhalation. While often linked to tiredness, its exact cause remains a mystery. Though oxygen deficiency is a common ...

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 ...