So what’s going on in our bodies and brains when we are yawning, and why is it so hard to stop? Spoiler: it’s not because you’re tired. Yawning is a primitive reflex that’s not limited to ...

For the past few years I have been prone to intermittent bouts of yawning lasting for several minutes. They can come on at any time – out walking the dog, doing the shopping or, more worryingly ...