Turns out a firm, warm handshake is more than a cordial power greeting. It’s a vector for germs. In one recent experiment, handshakes transferred an average 124 million units of E.coli.
What to do?
In our handshake culture, a simple smile seems inadequate and standoffish; a waggly finger wave is odd; a brisk nod could easily be misinterpreted as rude. Touching elbows? Beyond awkward.
So consider the fist bump. Infectious disease experts advocate this charismatic ritual greeting because it spreads 1/20th the germs of a traditional handshake and is ten times as hygienic as a high-five, according to research recently published in the American Journal of Infection Control. Keep reading to learn why and see a cool science video on fist bumps featuring celebrities and cute animals.