Yawning can be contagious – just ask your dog.
It’s two in the afternoon. You’re sitting in a meeting room listening to a presentation that is proving to be about as interesting as reading the instruction manual of a toaster. Your eye-lids are doing battle with gravity, and your head threatens to loll forward, but you figure you’ll probably make it through the meeting, so long as you find something else to distract yourself.
But glancing around the room, your efforts are suddenly thwarted. You see your colleague noticeably stifling a yawn. In your post-lunch under-caffeinated state you are defenceless – a yawn is soon welling up within you and there’s little you can do to stop it.
Infectious yawning is a curious phenomenon.