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Yawn

en.wikipedia.org/wiki/Yawn

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...

Why Is Yawning So Contagious? | Psychology Today

www.psychologytoday.com/blog/the-athletes-way/201403/why-is-yawning-so-contagious

Mar 16, 2014 ... About half of adults yawn after someone else yawns due to a universal phenomenon called “contagious yawning.” Researchers at Duke ...

Does contagious yawning mean you're nice? | HowStuffWorks

science.howstuffworks.com/life/contagious-yawn.htm

Contagious yawning is associated with the same parts of the brain that deal with empathy, according to a recent study. Learn about contagious yawning.

Is yawning contagious? If so, why? What's the evidence? - Quora

www.quora.com/Is-yawning-contagious-If-so-why-Whats-the-evidence

This is the most interesting hypothesis behind contagious yawning that I've seen: ... Yawning has subsequently become contagious behaviour because it ...

Contagious yawning and psychopathy - ScienceDirect

www.sciencedirect.com/science/article/pii/S0191886915003645

Highlights. •. We exposed males and females assessed on a measure of psychopathic traits (PPI-R) to a contagious yawning paradigm. •. We used an ...

Psychopaths May Be Immune To Contagious Yawning

www.huffingtonpost.com/entry/psychopaths-contagious-yawning_us_55d1ff2de4b07addcb437067

Aug 17, 2015 ... Psychopaths May Be Immune To Contagious Yawning. Those who lack empathy don't seem to “catch” yawns like the rest of us do. 08/17/2015 ...

Is that person a psychopath? A yawn might help you tell - TODAY.com

www.today.com/health/person-psychopath-yawn-might-help-you-tell-t40276

Aug 24, 2015 ... People high in psychopathic personality traits often don't "catch" the contagious yawn, a new study finds.

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

www.huffingtonpost.com/2013/06/10/facts-yawning-why-we-yawn-contagious_n_3398301.html

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 ...

You could be a psychopath if you don't yawn, a study has found ...

www.dailymail.co.uk/news/article-3199335/You-psychopath-don-t-yawn-study-found.html

Aug 15, 2015 ... Scientists have found that the more psychopath characteristics people have, the less chance they will be affected by 'contagious yawning' ...

Yawning is MORE contagious among women due to their higher ...

www.dailymail.co.uk/sciencetech/article-3428367/Yawning-contagious-women-higher-levels-empathy.html

Feb 2, 2016 ... It's a well-known fact that yawning is contagious and can spread around a room in a matter of seconds, but it turns out the phenomenon is more ...

Answer
Yawning is thought to cool the brain and make it more alert. Simultaneous yawning may occur when a group of people are all breathing the same warm, stale air. Or contagious yawning may have evolved to help groups remain vigilant against danger.
More Info

Why Are Yawns Contagious? | Mental Floss

mentalfloss.com

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 ...

Why Is Yawning Contagious? : Discovery News

news.discovery.com

Sep 15, 2010 ... Contagious yawning gets at the ancient, deep, and subconscious roots of empathy and social bonding. - Yawns become contagious around ...

Psychopaths Might Be Immune to Contagious Yawning | Smart News

www.smithsonianmag.com

Aug 25, 2015 ... It has long been believed that “contagious yawning” is actually a deep-seated signal that demonstrates an empathetic connection with another ...