Bournemouth University neuropsychologist Simon Thompson is an expert on yawning. In 2011, he posited that high levels of the stress hormone cortisol may be a direct cause of yawning. “We believe that ...

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. Even more complex? Why we seem to yawn because ...

It’s official, yawning is actually good for you. But why do we yawn? According to sleep experts, it releases the ‘feel good’ hormone serotonin, as well as dopamine, which helps influence ...