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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 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 ...

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 ...

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 So Contagious? - MeMD


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

Why Is Yawning Contagious? : Discovery News


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

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 ...

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 is yawn contagious?
A: Because it contains a special type of brain cells, or neurons, that become active both when th... Read More »
Source: www.chacha.com
Q: Why is yawning contagious?
A: I think the Mythbusters showed that this, at best, is inconclusive. When yawning seems to be contagious is most likely in situations when a lot of people presen... Read More »
Source: answers.yahoo.com
Q: Why is yawning contagious?
A: People yawn to adjust the pressure in their head after a sudden change in atmospheric pressure, which often happens after sunset as the pressure drops, the pres... Read More »
Source: answers.yahoo.com
Q: Why is yawning contagious?
A: Witnessing someone yawning renders inactive the periamygdala sections of the brain Read More »
Source: www.chacha.com
Q: Why Is Yawning Contagious?
A: It is probably the power of suggestion that leads one person to yawn after seeing someone else yawn. If the theory about nonverbal group communication is true, ... Read More »
Source: www.intelihealth.com