A yawn is a reflex consisting of the simultaneous inhalation of air and the
stretching of the ... This "contagious" yawning has also been observed in
chimpanzees, dogs, and can occur acros...
Jun 11, 2015 ... What is yawning? And why do we do so much of it? Neuroscientist and yawn
expert Robert Provine says it's “ancient and autonomic.” It stems ...
Jun 28, 2013 ... Pinpointing exactly why we yawn is a tough task, but the latest research suggests
that our sleepy sighs help to regulate the temperature of our ...
Update (Jan 2016): I wrote this answer several years ago. Though it currently has
accumulated ... Mirror neuron activity during contagious yawning--an fMRI study.
Contagious Yawning May Not Be Linked to Empathy; Still Largely Unexplained
Jun 10, 2013 ... We all do it, and we all know it has at least something to do with how tired we feel
. But unlike sleep apnea or laptops in the bedroom, yawning is ...
People high in psychopathic personality traits often don't "catch" the contagious
yawn, a new study finds.
Jul 5, 2007 ... Rather than being a precursor to sleep, yawning is designed to keep us awake,
say US researchers. But why does seeing someone else yawn ...
www.ask.com/youtube?q=Why are yawns contagious&v=jGIbUK4nw00
May 12, 2012 ... Why Do We Yawn? http://www.twitter.com/Tweetsauce Vsauce SHIRTS: http://
www.districtlines.com/vsauce Other peeps in this video: Charlie: ...
Aug 17, 2015 ... Those who lack empathy don't seem to "catch" yawns like the rest of us do.
According to Christopher Bergland for Psychology Today, a universal
phenomenon causes approximately half of all adults to yawn after another