What is it that makes us suddenly draw in a deep breath through a wide-open mouth? The beautiful thing about yawning is that researchers really don't know. Whether the answer is physical, mental or even contagious there is pretty much no chance you won't yawn during this classic episode.
# Stuff You Should Know - Yawning Episode Summary
Ever wonder why you yawn or what the heck it actually does for your body? Josh and Chuck dive deep into this universal but totally mysterious involuntary reflex that affects every vertebrate on the planet, exploring wild theories ranging from oxygen deprivation to brain cooling to the strange connection between yawning and empathy. They'll explain why yawning is so contagious, what happens in your brain when you stretch and yawn (that's called pendiculating, by the way), and why scientists still can't quite agree on why we do it at all, plus hear a touching listener story about hanging out with the legendary musician Rodriguez under the stars in Detroit.
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