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Artificial nails should not be worn by health-care professionals, because they harbor pathogens. Health-care professionals should have short, clean, well-kept fingernails.
1 Men can use a clear polish. Wearing artificial nails may stop you from biting your nails and protect them as they grow out. 2  Try stress-management techniques if you bite your nails because you are anxious or stressed.  Paint a bitter-tasting polish, such as CONTROL-IT or Thum, on your nails.