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According to Christopher Bergland for Psychology Today, a universal phenomenon causes approximately half of all adults to yawn after another person yawns. While researchers initial...

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.



This "contagious" yawning has also been observed in chimpanzees, dogs, and can occur across species. Approximately 20 physiological reasons for yawning ...

Why Are Yawns Contagious? | Mental Floss


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 So Contagious? | Psychology Today


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

Contagious Yawning - HowStuffWorks


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 Is Yawning Contagious? : Discovery News


Sep 15, 2010 ... ... Contagious? Find out Why Is Yawning Contagious in this article. ... Kids with autism are less likely to catch yawns than other kids. The more ...

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


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 ...

Psychopaths Might Be Immune to Contagious Yawning | Smart News


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

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


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 ...

Popular Q&A
Q: Why are yawns 'contagious'
A: It is thought that the brain's need for larger amount of oxygen, glucose, etc. [1] may not be the only reason why we (and many animals) yawn. Other study result... Read More »
Source: www.quora.com
Q: Why are yawns contagious?
A: Broughton said contagious yawning may be a social phenomenon, allowing groups of humans to coordinate their times of Read More »
Source: www.chacha.com
Q: Why are yawns contagious?
A: Some scientist say it developed as a way for groups to communicate bed time. Others say it evolved as a way to keep groups Read More »
Source: www.chacha.com
Q: Why are yawns contagious?
A: http://staff.washington.edu/chudler/yawn… http://www.yesmag.bc.ca/Questions/yawn.h… http://www.discover.com/ask-discover/?qi… human herd behaviour Read More »
Source: answers.yahoo.com
Q: Why are yawns contagious?
A: Yawns are contagious because they release any leftover CO2 that you have in your lungs. If a nearby person breathes after you yawn, like RIGHT AFTER, then they ... Read More »
Source: answers.yahoo.com