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5 Weird Involuntary Behaviors Explained!

Season 3 Episode 14 | 4m 50s

Yawns, hiccups, twitchy eyes (and more) explained!

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!

01/26/2015 | Rating NR

FromDigital Studios

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5 Weird Involuntary Behaviors Explained!

Season 3 Episode 14 | 4m 50s

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!

01/26/2015 | Rating NR

FromDigital Studios

Problems playing video?   | Closed Captioning Feedback

Report a Problem

Before you submit an error, please consult our Video Help page.

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