Grandma might have been right all along when she warned you to clean behind your ears and in between your toes.
Scientists at George Washington University in Washington D.C. theorized these spots would be a haven for bacteria, because they do not get washed as often as other parts of the body, like arms and legs.
Keith Crandall, professor of genomics at the university, recalled his own grandmother always telling him to ‘scrub behind the ears, between the toes and in the belly button.’
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