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July 29, 2014 That strong, sturdy handshake your grandpa taught you isn't the cleanest way to greet someone, scientists say. So should doctors and nurses in hospitals start bumping fists?
One set of knuckles meets another. Both are equal in this greeting that expresses approval and triumph.
July 19, 2014 Obama does it. And increasingly, so do folks around the world. Why is the fist bump so popular? And do other cultures have similar gestures?
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