Goodbye handshakes, hello fist bumps -- that is, if you want to pass along a lot less germs.

A new study in the "American Journal of Infection Control" found that a fist bump is way more hygienic than a handshake. A fist bump passes 95% fewer germs than a handshake.

Not a fan of the fist bump? Then you should at least high five. Yeah, it's not nearly as cool as the man-to-man knuckle slap, but it does pass 50% fewer germs than the handshake.

Wonder what's next, the "air slap"?!

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