Why do we yawn?

How do we know what we know about dinosaurs? Riley Black takes us back to the Mesozoic Era and explains how paleontologists piece together the lives of dinosaurs from often fragmentary clues. Guest: Riley Black, science writer, amateur paleontologist, and consultant for the Juras ...  Show more

A 2015 review found that most people in the US will experience a diagnostic error in their lifetime. Some of those errors are less devastating than others, but how can we help people get better answers about their health? One family's search for answers with a mystifying illness ...  Show more

Yawning is contagious, but why? Check out the leading theories on contagious yawning and empathy in this HowStuffWorks podcast.

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Is there anything – anything – worse than a yawn you can’t finish? It’s hard to think of anything else and as your obsession with yawning like a normal human being grows it only becomes more difficult. Why? Why?!See omnystudio.com/listener for privacy information. 

Why do we yawn? You might think it is because we are tired or bored. However, according to some research, yawning has nothing to do with either of those things. This episode begins with a look at the real reason we yawn and why yawning is contagious. http://abcnews.go.com/GMA/sto ...  Show more

You probably associate yawning with being tired or maybe being bored. However, according to some interesting research, yawning has nothing to do with either one of those things. I begin this episode of the podcast at a look at why we yawn and why yawning is contagious. http://abc ...  Show more