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