Biting nails is a hard habit to break, but there are methods that can help. First, make up your mind to stop. Second, keep an emery board handy. Use the emery board, and not your teeth, the moment you notice a snag.
The best way to stop nail-biting is to stock up on Sally Hansen hand cream and nail color in your favorite shades, so you can treat yourself to hand treatments and regular manicures. When your hands and nails are groomed, you'll have fewer snags and more incentives to keep your nails looking their very best.