Your Armpit Hair Will (Probably) Never Grow To The Floor. Here's Why.

A few weeks back, we examined why fingernails grow so much faster than toenails. Now comes the explanation for another bodily-function quirk you’ve always kinda wondered about, courtesy of the SciShow’s Hank Green: How does hair (including, like, eyebrow and armpit hair) know when to stop growing?

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Anti-Star Super-Christ

Tell that to Shrek, the sheep that got lost for 6 years and the wool never stopped growing. 60lbs of wool when they found him.