Germaphobes are being told to fist bump instead of shaking hands.
A study by Aberystwyth University in Wales has found it reduces the chance of spreading germs by 90%.
It also found that a high five spreads about half the amount of germs a traditional handshake does.
Dr. Dave Whitworth said "People rarely think about the health implications of shaking hands."
"If the general public could be encouraged to fist-bump, there is genuine potential to reduce the spread of infectious diseases."
The results will be published in August's edition of the American Journal of Infection Control.
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