Reviewed by Ray Spotts
Nearly 30% of young adults bite their nails, and there are reasons beyond ugly hands for breaking this bad habit. Biting your nails can interfere with normal nail growth and damage your tooth enamel. Not only that, but there are plenty of harmful bacteria that live underneath your fingernails, which you certainly don't want to bite into. Keep your nails trimmed short and there will be less to chew on, and less space for bacteria to live as well. If that doesn't work, the same products used to stop thumb sucking in children will make your finger nails taste just as terrible.
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