Fist bump your doctor? It may be less germy

The sterile gloves were tested to see how many of the bacteria had gone across.

“Nearly twice as many bacteria were transferred during a handshake compared with a high five, whereas the fist bump consistently gave the lowest transmission,” the researchers wrote.

The firmer and longer the handshake, the more germs came across.

It makes sense – many studies have shown that a damp palm hosts a diverse population of bacteria and fungi. People are covered with bacteria, but the hands are notoriously good carriers.