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There are a number of theories that attempt to explain why animals and people yawn. It is likely that there are a number of ...

Why We Yawn - WebMD


Sep 23, 2011 ... People yawn more easily in cooler temperatures, supporting the idea that ... Gallup's theory predicts that colder outside air should cool the brain ...

The Real Reason We Yawn - WSJ


Aug 19, 2014 ... Scientists working to unravel the mystery surrounding the yawn, and why it's contagious, have discovered that yawning is much more ...

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.

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 ...

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, ...

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 ...

BBC - Future - One of science's most baffling questions? Why we yawn


Aug 12, 2014 ... If that were true, you would expect people to yawn more or less ... For this reason, some researchers have wondered if yawning might be a ...

Popular Q&A
Q: What are five reasons why people yawn? What is the connection of ...
A: 1. Yawning is induced by hypoxia (low oxygen levels in the blood stream). 2. Yawning is a method for communicating to other individuals your physiological state... Read More »
Source: answers.yahoo.com
Q: What is the medical reason of why people yawn.
A: The truth is that no one knows for sure why we yawn. There are a few ideas but none have been Read More »
Source: www.chacha.com
Q: What is the scientific reason for why people yawn?
A: Our bodies induce yawning to draw in more oxygen or remove a build-up of carbon dioxide. Keep using Cha Cha! Our bodies induce yawning to drawn in more oxygen o... Read More »
Source: www.chacha.com
Q: Why is the reason people yawn?
A: Nobody is exactly sure. It's sort of like the common cold - we all know what it is, but we don't know why it happens. However, if this is actually the purpose, ... Read More »
Source: answers.yahoo.com
Q: Why do people yawn.
A: When people have no power in the body and feel the laziness or feel boring, that time people take the yawning. Read More »
Source: www.answers.com