Web Results

en.wikipedia.org/wiki/Yawn

A yawn is a reflex consisting of the simultaneous inhalation of air and the stretching of the ... Yawning may in fact reduce oxygen intake compared to normal respiration. However, neither providing more oxygen nor reducing carbon dioxide in ...

examinedexistence.com/11-interesting-facts-about-yawning

Yawning, also known as oscitation, is a bodily activity that occurs in most ... Here are several interesting facts about yawning – guaranteed to make you yawn ...

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 ...

factslegend.org/30-interesting-yawning-facts

Jul 4, 2015 ... Most interesting of yawning facts is that scientists still don't know the exact reason why people yawn. There are over 20 theories with no ...

www.mnn.com/earth-matters/animals/blogs/5-surprising-facts-about-yawning

Feb 12, 2016 ... Sure, we know yawning is contagious. But did you know we start yawning in the womb?

www.ranker.com/list/facts-about-yawning/jacob-shelton

Scientists think they know why we yawn, but they're not really sure. In fact, every few years a new study is released that claims to have unveiled what is the ...

www.loc.gov/rr/scitech/mysteries/yawn.html

The study of yawning is anything but boring. It boasts a rich history of theories that go back to Antiquity, but thus far the biological function of yawning remains a  ...

g9sleeptight.com/interesting-facts-about-yawning

We all yawn at one point or another. In most cases yawning is associated with boredom, fatigue, or sleepiness. But what does yawning mean? Why do we ...

www.activebeat.com/your-health/10-little-known-facts-about-yawning

Mar 24, 2014 ... That's why I'm discovering the myth and fact behind several yawning conundrums (thanks to valued help and insight from the experts). Here are ...