Nervous? Bored? Stressed? Many of us tend to bite our nails when life brings on unwelcome events, but it’s time to finally stop. This nasty habit may offer peace in the moment, but the side effects just aren’t worth it. You can pick up skin infections and colds, and it can also affect your teeth: nail-biting causes misalignment and enamel erosion. So, ready to quit? Check out the tips below.