Web Results

Yawn

en.wikipedia.org/wiki/Yawn

A yawn is a reflex consisting of the simultaneous inhalation of air and the stretching of the ..... George Washington said, "If You Cough, Sneeze, Sigh, or Yawn, do it not Loud but Privately; a...

Why We Yawn - WebMD

www.webmd.com/brain/news/20110923/why-we-yawn

Sep 23, 2011 ... 23, 2011-- Why do we yawn? ... So do most vertebrate animals. ... When you start to yawn, powerful stretching of the jaw increases blood flow in ...

Why Do I Yawn? - KidsHealth

kidshealth.org/en/kids/yawn.html

If you yawn in class, you'll probably notice a few other people will start yawning, too. Why is that?

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

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 . ... about yawning can trigger one (did we get you yet?).

Excessive Yawning and What You Can Do About It - Healthline

www.healthline.com/symptom/excessive-yawning

Feb 29, 2016 ... Yawning is a mostly involuntary process of opening the mouth and breathing in deeply, filling the lungs with air. It is a very natural response to ...

What makes us yawn? | HowStuffWorks

science.howstuffworks.com/life/inside-the-mind/human-brain/question572.htm

Don't misunderstand, we aren't intending to bore you, but just reading about yawning will make you do it, just as seeing or hearing someone else yawn makes  ...

Why do we yawn? Nothing to do with boredom - we're just cooling ...

www.independent.co.uk/news/science/why-do-we-yawn-nothing-to-do-with-boredom-were-just-cooling-our-brains-say-scientists-9356468.html

May 12, 2014 ... A new study has suggested that the reason we yawn has nothing to do ... thanks to the yawning and your newly-cooled brain, you're probably ...

The Real Reason We Yawn - WSJ

www.wsj.com/articles/the-real-reason-we-yawn-1408403897

Aug 19, 2014 ... Most people yawn upon seeing someone else do it, but infants and people with autism or schizophrenia aren't so affected by this contagion ...

Yawning - excessive: MedlinePlus Medical Encyclopedia

www.nlm.nih.gov/medlineplus/ency/article/003096.htm

Excessive yawning that happens more often than expected, even if drowsiness or weariness is present is ... How many times do you yawn per hour or day?

Why Do We Yawn - Why What How of Human Body - Pediatric Oncall

www.pediatriconcall.com/kidscorner/whywhat/Why_yawn.aspx

WHY DO WE YAWN? For that you'll first have to understand what happens when we breathe. Normally, when you breathe in, you inhale oxygen and your body ...