Ever noticed how one yawn can trigger many? Science reveals how your brain copies others, why yawns spread so easily, and ...

When she worked in banking, Nana Gigolaeva used to shift her eyes from left to right during her boss’ presentations. “It made me focus so I wouldn’t yawn,” says Gigolaeva, 30, of Walnut Creek, Calif. ...

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 as ...

The human body is full of mysteries. We often find ourselves questioning various reflexes. For instance, why do our eyes twitch? Why do we get a brain freeze? And why do we have hiccups? But among ...

Have you ever wondered why yawning is contagious? It may be a way to bond with your fellow human being, but scientists have other theories. We’re one sentence into this story and I’ve already yawned ...

My dog is a big yawner. The very first time I picked him up when he was a puppy, he was a yawning, bundle of squirm. (You can see his photo from those yawny puppy years below.) It's two years later, ...