A myth? Or, a real health concern?
SciShow goes out to explain in the video below.
See also: There’s a Reason Why Nails on a Chalkboard are so Unbearable
Brain and Body
What Are Those Lines on Your Nails?
November 4, 2016 | Johannes Van Zijl
November 4, 2016 | Johannes Van Zijl
SciShow goes out to explain in the video below.
See also: There’s a Reason Why Nails on a Chalkboard are so Unbearable
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