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Beards are the fastest-growing hair on the human body. If a man never trims his beard, it can grow to be around thirty feet long.

Test your smarts against this one-minute video, where Ask Smithsonian host Eric Schulze uncovers the facts behind five popular myths about the human body. The Art of Sausage Making The Incredible ...

Blushing is a uniquely human reaction and one we’ve all experienced at some point. But why do we blush? Blushing is actually a bit of a scientific mystery and one of the many weird facts about ...