At least one study suggests that yawning, especially psychological "contagious"
yawning, may have developed as a way of ...
Mar 16, 2014 ... Does looking at this image of a person yawning make you yawn? About half of
adults yawn after someone else yawns due to a universal ...
Jan 11, 2016 ... We yawn when we see someone else yawn. The sound of yawning makes us
yawn. The yawning contagion can even spread between species.
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 ...
Contagious yawning is associated with the same parts of the brain that deal with
empathy, ... Science is still investigating exactly what makes us yawn, but it's a ...
Jun 28, 2013 ... Mimicry is likely at the heart of why yawning is contagious. This is ... They open
wide and yawn and a good yawn makes them happy as a clam.
Contagious Yawning - You've likely experienced contagious yawning. Learn why
contagious yawning exists and what causes contagious yawning.
Oct 2, 2015 ... Gray fox yawning. ... It is a phenomenon called contagious yawning and it
happens when we humans see, hear or even read or talk about ...
Update (Jan 2016): I wrote this answer several years ago. Though it currently has
accumulated .... Over a minute one yawn causes maybe 25% of extra ventilation.
In general it can't meaningfully affect brain temperature: Lets assume a human ...
Dec 10, 2014 ... Can you make it through this post without yawning? ... Keep reading to discover
why exactly we yawn and why it is a seemingly contagious ...