People who bite their nails often try to quit because it’s hurting the appearance of their nails. But nail biting can also spread harmful bacteria, viruses and more from your fingers to your mouth. As a result, research points the finger at nail biting for potentially causing these problems in your mouth:  •Broken, chipped or cracked teeth   • Misaligned front teeth •Worn tooth enamel •Damaged or shortened roots •Inflamed gums •Tearing of the gums • Jaw pain •Grinding or clenching of the teeth • Increased amount of bacteria in the mouth #nailbiting #badhabits