Interview: Is Fist Bumping Healthier Than Hand Shaking?
It might have started out as the cool athlete-to-athlete way of saying nice play, man, but now you might want to seal your next business deal with a fist bump.
The knuckle knocking made even more famous by President Obama and noted germaphobes like game-show host Howie Mandel is a much more hygienic way of exchanging pleasantries, according to researchers in Wales.
Because there isnt as much skin-to-skin contact, fist bumps transfer significantly fewer bacteria than the more common handshakes.
ABC's Scott Goldberg joined us for more information.
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