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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 Are Yawns Contagious? | Mental Floss

mentalfloss.com/article/64654/why-are-yawns-contagious

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 ...

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.

Why Do We Yawn and Why Is It Contagious? | Science | Smithsonian

www.smithsonianmag.com/science-nature/why-do-we-yawn-and-why-is-it-contagious-3749674/

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 ...

BBC NEWS | UK | Magazine | Why is yawning contagious?

news.bbc.co.uk/2/hi/uk_news/magazine/6270036.stm

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 ...

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' ...

Why Do We Yawn - and Why Is Yawning So Contagious? - Healthy ...

www.everydayhealth.com/healthy-living/why-do-we-yawn-and-why-is-yawning-contagious.aspx

Dec 15, 2011 ... Ever wonder why we yawn or why yawning is contagious? We take a look at the most popular answers to this frequently asked question.

Why Is Yawning So Contagious? - MeMD

www.memd.me/yawning-contagious/

Dec 10, 2014 ... Why do we yawn? The center of many a scientific study, researchers have several theories about the science behind this contagious ...

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.
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Why Is Yawning So Contagious? | Psychology Today

www.psychologytoday.com

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

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

www.quora.com

Yawning has subsequently become contagious behaviour because it improves the survival function of herds. If there is some potential danger nearby, the ...

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 ...