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A yawn is a reflex consisting of the simultaneous inhalation of air and the stretching of the ..... Contagious yawning is one means of evaluating such disorders. ... George Washington said, "If...

If You Yawn Does That Mean You're Tired | Sleep.org


Find out if you're yawning, does that mean you're tired.

Why Do You Yawn When You're Not Sleepy? | Psychology Today


Nov 16, 2011 ... Despite what you may have heard, yawning has nothing to do with ... this happens because yawning evolved as a means of communication.

You don't yawn because you're tired - CNN.com


May 9, 2014 ... A new study suggests that you may not really be yawning because it's contagious , or you're bored or tired. ... MUST WATCH. Watch this video. Why do yawns seem contagious? 01:32 ...

Excessive Yawning and What You Can Do About It - Healthline


Feb 29, 2016 ... Learn about possible causes and treatments for excessive yawning. ... It is a very natural response to being tired. .... If you experience a dissection of the aorta, it means that blood has entered the wall of the artery, between the ...

Does my frequent yawning mean my brain isn't getting enough ...


May 13, 2013 ... DEAR READER: Most of us yawn more often in the early morning and late evening. Does it mean you're tired? Bored? Not getting enough ...

Why Do I Yawn? - KidsHealth


If you yawn in class, you'll probably notice a few other people will start ... is that when we are bored or tired, we just don't breathe as deeply as we usually do.

The Surprising Science of Yawning - The New Yorker


Apr 14, 2014 ...You just do it. You're playing out a biological program.” We yawn unconsciously and we yawn spontaneously. We can't yawn on ...

Yawning All the Time: Causes and Coping Measures | MD-Health.com


Understanding excessive yawning can help you and your doctor find a cure for this ... when they are very tired or fatigued, or when they are staying up later than they usually do. ... Remember that yawning all the time can mean many things.

Why do we yawn? Nothing to do with boredom - we're just cooling ...


May 12, 2014 ... So why do we yawn when we're tired? ... thanks to the yawning and your newly- cooled brain, you're probably more alert than you were before.

Yawning can indicate boredom or tiredness.
There are many theories about why people yawn, but no one knows for sure.
More Info

Facts About Yawning: Why We Do It, Why It's Contagious And More


Jun 10, 2013 ... That doesn't mean we're totally in the dark when it comes to catching flies. Here are a few of ... to why we yawn. FIrst off, we don't only do it when we're tired. ... about yawning can trigger one (did we get you yet?). Turns out, it's ...

Why do we yawn when we are tired? And why does it seem to be ...


You are correct in thinking that yawns are catching. ... Some evidence suggests that yawning is a means of communicating changing environmental or internal ...

Why We Yawn | Causes | Excessive Yawning | Contagious | Facts ...


That doesn't mean that all of you are bored or tired. ... You're probably on the verge of a yawn, too, and seeing one person do it is enough to drive everyone to  ...