Why do we yawn? This reflex occurs most often due to state change, i.e. during periods of transition between waking and sleep.

The average adult yawns about 20 times a day. But why? Surely we can’t all be that tired. The truth is, the science behind yawning is more complex than just a few hours too little sleep. Even more ...

Yawning is surprisingly infectious, spreading quickly among friends and family. The researchers have long studied why humans catch each other’s yawns. The phenomenon is linked to empathy, social bonds ...

Have you ever found yourself starting to yawn just because you saw someone else do it? It’s not your imagination: Yawns really are contagious! In fact, humans can feel the urge to yawn after seeing, ...

Is it true that we yawn when our brains are deprived of oxygen? Most of us can feel a yawn coming on. The muscles in our jaw begin to tighten, our nostrils might flare, and our eyes might tear up as ...

Scientists who prevented people from catching yawns in a study believe the reflex helps to cool down the brain. The study, published in the journal Physiology & Behavior, involved 92 undergraduate ...

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 ...

Most people have experienced it. A person yawns and then a few minutes later, another person nearby yawns. Is it always fatigue? Do tired people just happen to gather together? Not exactly. Yawning ...

Chimps do it, birds do it, even you and I do it. Once you see someone yawn, you are compelled to do the same. Now it seems that wolves can be added to the list of animals known to spread yawns like a ...

Why do we yawn? Yawning is a universal gesture. Everyone yawns, from babies still in their mother's womb to the elderly. However, the exact reasons for this reflex are not well understood. Is it just ...