DISPLAYING DIRTY FINGERNAILS
Why It's Not So Cool: Why bother hitting the gym and dressing for success when a speck of crud hiding under the tip of your pinkie screams "Mama never taught me how to wash myself!"
The Health Risk: A British study showed that 24 percent of men harbor germs under their nails that could cause gastroenteritis. And experts say this is because the space under your nails is a prime breeding ground for a veritable cornucopia of viruses, including E. coli and salmonella. "It's particularly a problem if you're handling food," says Charles Gerba, Ph.D., a microbiologist at the University of Arizona. Lucky for guys, short nails are easier to keep clean than the talons some ladies sport—and let's just hope she's washing well before making you a cheeseburger.
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