Although yawning seems like a small, everyday action, recent studies have found that it causes an unexpected reaction in the ...

Yawning is a universal phenomenon, observed in many vertebrate species, from wolves to parrots, and, of course, humans, from a very early age. But why do we tend to yawn when we see someone else doing ...

Johanna Simkin does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...