ELi5: Why do certain sensations like chalk on a chalkboard or rubbing styrofoam together cause your skin to crawl?
In: Other
My friend once had a big crawl into his ear at night. He said it sounded like nails on a chalkboard.
ELi5: Why do certain sensations like chalk on a chalkboard or rubbing styrofoam together cause your skin to crawl?
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