Just hearing about yawning can make you yawn, and no one is sure why. Learn more about yawns and yawning in this HowStuffWorks podcast.
 Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

Just hearing about yawning can make you yawn, and no one is sure why. Learn more about yawns and yawning in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

How Does Yawning Work?

Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.

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How Does Yawning Work?

How Does Yawning Work?