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Why Is Yawning Contagious?

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Published on May 12, 2012

Why Do We Yawn?

http://www.twitter.com/Tweetsauce

Vsauce SHIRTS: http://www.districtlines.com/vsauce

Other peeps in this video:

Charlie: http://www.youtube.com/charlieissocoo...
Alex: http://www.youtube.com/nerimon

Yawning to cool down your brain: http://well.blogs.nytimes.com/2011/10...

and: http://dsc.discovery.com/news/2008/12...

More on yawning and empathy here: http://tlc.howstuffworks.com/family/c...

here: http://news.bbc.co.uk/1/hi/6988155.stm

and here (for the journal article): http://www.plosone.org/article/info:d...

Angry Mob play-set (no longer available): http://www.neatoshop.com/product/Angr...

PARAKEET YAWN: http://www.youtube.com/watch?v=nFiT6Q...

BETTA FISH YAWN: http://www.youtube.com/watch?v=FsBTwc...

SNAKE YAWN: http://www.youtube.com/watch?v=Fhfss_...

"Why Are Yawns Contagious" "Why is yawning Contagious" "why do we yawn"

Music by Jake Chudnow: http://www.soundcloud.com/JAKECHUDNOW

intro animation by http://www.youtube.com/rickonami

Comments • 18,413

Calvin Barnes
I yawned like 10 times while watching this video.
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TheNuroshi
Reading the word yawn makes me yawn
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Marie #LaFamilia
I yawned like 10 times while watching
Carrot Slice
that horse yawn tho
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TheTruthSetMeFree
I CAN'T STOP FUCKING YAWNING.
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Aya Jab
I yawned while looking at the thumbnail
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Jillian Michelle
I yawned like every 20 seconds in this video
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Spectrum
Why do our eyes water? When we yawn at least
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Rubberjohnny
I yawned 69% of the time
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Brenda Schouten-Beckett
I yawned just looking at the picture.
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