The ones who have the habit of biting nails should try to quit. For, with time, deformities may occur in the nails´ shape, since the origin where it starts to grow may be jeopardized. With this, the nail may grow bent and deformed. Also avoid using your nails as pressure tools (for example, do not use them to open objects). That can break the nails or make them to crack easily.

Keeping your nails polished is a good solution to discourage these habits, because people usually remember to be more careful with their nails so that the enamel will not peel off.