Story thread · 3 reports / 3 sources

How gross is biting your fingernails?

popsci.com · 8dShare

Between 20 to 30 percent of American adults bite their nails. But you should probably stop to avoid bad bacteria and damaging your body. The post How gross is biting your fingernails? appeared first on Popular Science .

First report: What your nails say about your health — punchng.com, 9d