“Yawning often occurs when we’re tired – likely as a mechanism to increase oxygen intake and regulate brain temperature,” explains Dr Ann Nainan, a GP and founder of The Travelling Doctor.

I’m 84 and I can’t stop yawning. It’s upsetting my family and friends because they think I’m bored of them. I’m not tired either, so that can’t be the cause. What should I do?

Cue the yawn. The yawn is so much more than a signal of how tired we are. It’s also a symptom of boredom, an expression of rebellion, a facial workout, and an utterly contagious bodily function ...

So, why do we yawn when tired? Yawning is sometimes associated with fatigue, and given that you’re more likely to feel drowsy in warm temperatures, the links appeared to make sense. Some tests ...

Some theories suggest that yawning is also a communication method, on how you feel, whether you’re tired, bored, or under mild stress. A few believe that yawning might help stimulate arousal and ...

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

Poor sleep quality: Lack of restorative sleep is one of the most common reasons for feeling tired during the day. Frequent yawning: It's a sign that your body is trying to stay alert despite the ...