Video: The science behind hiccups, yawns and more – 5 Weird Involuntary Behaviors Explained @jtotheizzoe

It’s Okay to be Smart – 5 Weird Involuntary Behaviors Explained!

Yawns, hiccups, twitchy eyes (and more) 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, or 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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