(STUDYFINDS) — SAN FRANCISCO — You may be bringing home a few new friends the next time you take a swim in the ocean. Researchers at the University of California have found that ocean bacteria invade and change the skin microbiome after just 10 minutes of swimming, increasing the likelihood of infections.

Our skin is naturally home to millions of bacteria and fungi, and while this may sound a bit unnerving at first, these little stow aways actually help regulate our immune systems and protect us from unwanted pathogens and infections.

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