Is Yawning Contagious?
Absolutely! It’s one of the body’s most contagious, uncontrollable actions.
In fact, yawning is so contagious that seeing a picture of someone yawning can make you yawn. Not only that, but even reading or writing about yawning can make you yawn! (Are you yawning yet?)
Scientists continue to research the “contagious yawn” phenomenon, but they have yet to discover what exactly causes people to yawn simply because they see another person yawning.
One theory is that yawning may be an unspoken form of communication, and “contagious yawning” is related to empathy (the ability to recognize, understand, and share the feelings of others). People with higher levels of empathy yawn more often when someone else yawns, compared to people with lower levels of empathy or those with emotional disorders.
A recent study discovered that yawns are most contagious among close friends and family members. Apparently, the closer you are to someone genetically or emotionally, the more likely it is that you’ll “catch” his/her yawn. Research has also shown that children under the age of five, as well as older adults, are less likely to yawn in response to somebody else yawning.
What Exactly Is a Yawn?
Everybody yawns on a daily basis, from infants to great-grandparents and everyone in between. But, have you ever wondered what exactly is a yawn?
A yawn is a big intake of air. The mouth and jaw open wide. Through the mouth and nose, there’s a deep inhale, followed by a slow exhale. Sometimes, people close their eyes when they yawn; often they stretch their arms or legs, too. Although we yawn more often when we’re tired or bored, scientists have ruled out sleepiness or lack of oxygen (which would cause sleepiness) as causes for yawning. Then why, exactly, do people and animals yawn?Scientists still do not know for sure, but they do have a few theories.
Animals Yawn Too!
Did you know that dogs, cats, and other animals yawn, too? In fact, nearly all vertebrates, from fish to reptiles to primates, yawn. What’s even more amazing is that research has proven that yawning is contagious among some animals as well. Examples include dogs, chimpanzees, and bonobos. Experiments have shown that dogs will even yawn after a person yawns!