Find out if you're yawning, does that mean you're tired.
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 ...
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.
When you are tired, your body's energy levels are pretty low. Which means that
your body cells need more fuel or in other words, more oxygen. When you yawn ...
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 ...
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
Sep 6, 2015 ... We don't always yawn only when we are tired, it may be due to bigger health
issues. ... of why we do this is yet unknown, yawning when you are tired is a ...
yawning without fatigue or lack of sleep could indicate heart trouble.
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.
Nov 26, 2012 ... Stress, Boredom or Sleep – What Yawning Means ... The act of yawning isn't a
simple one that just means you are tired and need some more ...
Apr 14, 2014 ... “You don't decide to yawn,” Robert Provine, a neuroscientist and the author of “
Curious ... Indeed, fatigue and boredom do reliably elicit yawns.