Next time you catch yourself yawning, look around: Did anyone close to you let out his or her own sleepy "ahhh"? Turns out, close friends and family are more likely than acquaintances or strangers to ...

Thomas Mulligan dives into the fascinating neurological mechanisms and evolutionary theories behind why humans reflexively ...

Yawning is a highly contagious behavior. Stand next to someone who sleepily opens their mouth to take a deep breath, and, within a matter of seconds, you’ll likely find yourself doing the same. Now, ...

Call me oblivious, but I never realized yawns are contagious until my best friend clued me in toward the end of high school. I was in the middle of trying my absolute hardest to keep my mouth shut in ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Scientists who prevented people from catching yawns in a study believe ...

For bonobos, yawning is contagious, but only between friends. Yawns spread more easily between family and close friends, and from high-status monkeys to those lower on the totem pole, according to a ...

Add Yahoo as a preferred source to see more of our stories on Google. Sometimes our pets get really dramatic when they're hungry or tired, and they totally overreact to things they normally wouldn’t.

When I interviewed Andrew Gallup, I yawned five times in the space of half an hour. That wasn’t because he was boring. It was because he studies yawning—and not just in humans, either. Gallup, a ...

Have you ever found yourself starting to yawn just because you saw someone else do it? It’s not your imagination: Yawns really are contagious! In fact, humans can feel the urge to yawn after seeing, ...

Humans, along with most other vertebrates, yawn. It's likely an ancient behavior with some adaptive advantages. Although we most often associate yawning with boredom or sleepiness, it may serve more ...