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.

generate a lot of heat. Much like a computer, the study shows that our brains operate more efficiently when they are cool; yawning is an effective way of increasing blood flow and intake of cooler ...

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 ...

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 ...

You may well be yawning just reading this - it's contagious. Now researchers have looked at what happens in our brains to trigger that response. A University of Nottingham team found it occurs in ...

Even dolphins, playful and curious though they are, can get bored with life in an aquatic environment and apparently need to yawn to stay awake. Video footage captured a dolphin yawning ...