While yawning and taking deep breaths are similar actions, they have distinct effects on the cerebrospinal fluid in the brain ...

Researchers used MRI to show yawning drives cerebrospinal fluid and venous blood out of the skull. This unique flow pattern ...

Dogs catch yawns from their sound alone, new research indicates. They also catch their owner's yawns easier than those from others, supporting the theory that contagious yawns are empathy-based and ...

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 the reflex helps to cool down the brain. The study ...

The average adult yawns about 20 times a day. But why? Surely we can’t all be that tired. The truth is, the science behind yawning is more complex than just a few hours too little sleep. Even more ...

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 ...