“Most of us equate yawning with being tired, but studies have found that yawning could be caused by your body trying to cool your brain,” Dr. Jen Caudle tells Yahoo Life. She describes yawning as the ...

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

Day after day, it’s the same thing. We wake up feeling groggy and exhausted, and all day long we’re yawning and wishing we could take a five-hour long nap to make up for lost sleep. We have heavy eye ...

You know you're in trouble when your boss catches you yawning during a meeting, and your eyes better be wide open when your significant other is going on and on about something. There isn't much ...

Open your mouth wide, stretch the muscles of your jaw and upper body, take a slow breath in, and then exhale quickly. What have you done? You have yawned. Many animals, including humans, yawn. They do ...

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 ...

You'd think it'd be easy to spot some of the signs that you aren't getting enough sleep, right? The yawning, the severe caffeine dependency, the falling asleep while standing up on the bus (is that ...

Most people seem to be quite sure they understand yawning. They think it is caused by the need for oxygen, or boredom, or sleepiness. A group of medical scientists (Walusinski 2010) have upset this ...

I can answer this for everyone: no. Possibly heck no. The question, if you're curious, is whether you're getting enough sleep. Few people think they get enough, because however much you get, you know ...

Among the occupations that get the shortest amount of shuteye each night, several make life-and-death decisions regularly. And members of one profession on the list carry guns on the job. Anybody need ...

Sponsored content. Us Weekly receives compensation for this article as well as for purchases made when you click on a link and buy something below. Day after day, it’s the same thing. We wake up ...