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... of theories that attempt to explain why animals and people yawn. ... to explain the primary evolutionary reason for the yawn.

Why We Yawn - WebMD


Sep 23, 2011 ... People yawn more easily in cooler temperatures, supporting the idea ... Now a series of experiments suggests a surprising reason for yawning.

Excessive Yawning and What You Can Do About It - Healthline


Feb 29, 2016 ... Learn about possible causes and treatments for excessive yawning. ... Obesity is an epidemic in the U.S. This condition puts people at a higher ...

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


May 12, 2014 ... A new study has suggested that the reason we yawn has nothing to do ... a video of people yawning were 41 per cent likely to yawn themselves ...

Why Do I Yawn? - KidsHealth


If you yawn in class, you'll probably notice a few other people will start ... As this theory goes, our bodies take in less oxygen because our breathing has slowed.

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


Jun 10, 2013 ... That open-mouthed yawn causes sinus walls “to expand and contract ... The study found that people were more likely to yawn during the winter, ...

8 reasons for excessive yawning you probably didn't know about ...


Sep 6, 2015 ... 8 reasons for excessive yawning you probably didn't know about. ... The study also stated that people suffering from multiple sclerosis suffer ...

Yawning Excessively - Symptoms, Causes, Treatments - Healthgrades


Sep 30, 2013 ... Yawning Excessively Information Including Symptoms, Diagnosis, Treatment, Causes, Videos, Forums, and local community support.

Yawning All the Time: Causes and Coping Measures | MD-Health.com


Yawning all the time can definitely be troublesome, especially if you can't find any reason for it. Most people yawn excessively when they are very tired or ...

The Surprising Science of Yawning - The New Yorker


Apr 14, 2014 ... Yawning may be the opposite of what we think—not a signal of ... signal of sleepiness or boredom—one of the reasons Sasha Obama's yawn seemed ... Provine demonstrated that people report yawning more frequently when ...

More Info

The Real Reason We Yawn - WSJ


Aug 19, 2014 ... Our tendency to yawn when other people yawn has long been incorrectly explained as primarily an expression of a person's empathy.

What makes us yawn? | HowStuffWorks


So what's behind this mysterious epidemic of yawning? First ... Why do people blush? ... Now that we know what a yawn is, let's look at what causes us to do it.

You don't yawn because you're tired - CNN.com


May 9, 2014 ... A new study suggests that you may not really be yawning because it's contagious , or you're bored or tired.