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It's Okay to Be Smart

Why Do We Itch?

Season 5 Episode 22 | 4m 57s

It’s one of the most annoying sensations our bodies can feel, but does anything feel better than when you scratch an itch? Ok, maybe *some* things. But itching and scratching are up there. How does this weird sensation work? And what is itching for?

Aired: 06/25/18

Rating: NR

Video has closed captioning.

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