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 episode.
This episode of Stuff You Should Know dives into the surprisingly mysterious world of yawning, exploring why we do it, why it's contagious, and what science has discovered about this universal behavior. Josh and Chuck examine various theories from oxygen deprivation to brain cooling to empathy, discuss how even fetuses yawn in the womb, and reveal fascinating facts like how certain types of paralysis can still allow yawning movements. They also cover the related phenomenon of pandiculation (that satisfying stretch-and-yawn combo) and share some entertaining listener mail about hanging out with the musician Rodriguez from the acclaimed documentary "Searching for Sugar Man."
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