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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 ... Yawning feels good, so why not join in when someone else yawns? Well, you're not really “joining in,” because you aren't copying the yawn on ...

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 ... You don't need to actually see a person yawn to involuntarily yawn yourself; ...

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

Jul 8, 2016 ... Contagious yawning — or yawning when you see someone else do it — is a very primitive form of communication and bonding, Rundle says.

Is Yawning Really Contagious? | Van Winkle's

vanwinkles.com/is-yawning-really-contagious

Nov 19, 2015 ... Do we really pass around yawns, or is it just an old wive's tale?

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 ... Unfortunately, this explanation is actually a myth, says Steven Platek, ... Along with being contagious, yawning is highly suggestible, meaning ...

Psychopaths Might Be Immune to Contagious Yawning | Smart News

www.smithsonianmag.com/smart-news/pyschopaths-might-be-immune-contagious-yawning-180956386/

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

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 ... Brian Rundle, a PhD student involved in the study, told The Times: 'One of the biggest lines of evidence is that (contagious yawning is) very ...

Contagious yawns are a sign of empathy - Daily Mail

www.dailymail.co.uk/sciencetech/article-2722992/Want-know-likes-See-YAWN-Contagious-yawning-sign-empathy-study-reveals.html

Aug 12, 2014 ... Rather, it is a good sign, for it means they really like you. ... Biologists believe contagious yawns are caused by an involuntary re-enactment of ...

Why Is Yawning So Contagious? - MeMD

www.memd.me/yawning-contagious/

Dec 10, 2014 ... People are prone to contagious yawning because of our sense of empathy, or the ... When friends yawn – You are actually more likely to yawn ...

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 ... ... “Individual Variation in Contagious Yawning Susceptibility Is Highly ... Contagious yawning is a phenomenon that only occurs in humans and ...

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

www.quora.com

Update (Jan 2016): I wrote this answer several years ago. Though it currently has accumulated the most votes, there are now much better answers others have ...

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

www.huffingtonpost.com

Jun 10, 2013 ... Yawning Really Is Contagious It's true! One study found that when shown videos of yawning, around 50 percent of people also began yawning.