Why Is Yawning Contagious?

LINKS TO LEARN MORE: www.twitter.com www.Facebook.com Vsauce SHIRTS: www.districtlines.com Other peeps in this video: Charlie: www.youtube.com Alex: www.youtube.com Yawning to cool down your brain: well.blogs.nytimes.com and: dsc.discovery.com More on yawning and empathy here: tlc.howstuffworks.com here: news.bbc.co.uk and here (for the journal article): www.plosone.org Angry Mob play-set (no longer available): www.neatoshop.com PARAKEET YAWN: www.youtube.com BETTA FISH YAWN: www.youtube.com SNAKE YAWN: www.youtube.com "Why Are Yawns Contagious" "Why is yawning Contagious" "why do we yawn" Music by Jake Chudnow: www.soundcloud.com intro animation by www.youtube.com

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