There’s been a lot of debate about how often we need to bathe — and the answer might be less than you think. It turns out we have a complicated history with washing dating back to the baths of Ancient Rome. In this brand new episode of Margins of Error, CNN's senior data reporter Harry Enten goes straight to the experts to decode the hygienic necessity of bathing versus our societal norms. Plus, he sees what life is like without deodorant. You’ll have to smell it to believe it. New episodes of Chasing Life return on May 17.

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