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5 Weird Involuntary Reflexes Explained!

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Our bodies do a lot of weird things, and many of them are completely involuntary. Why do we often jerk our bodies awake right before falling asleep? Why do we yawn? Why do we hiccup? Why do some people sneeze when they look at the sun? And why does your eye twitch? This week we'll look at the science behind these crazy involuntary behaviors!


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Additional Resources for you to Explore
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Popular Science: MIT Makes a Robot With Human Reflexes
New York Magazine: Why do I Jerk Awake as I'm Falling Asleep
The New Yorker: The Surprising Science of Yawning

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About TED-Ed Best of Web

TED-Ed Best of Web are exceptional, user-created lessons that are carefully selected by volunteer teachers and TED-Ed staff.

Meet The Creators

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