Biting nails is a common habit that many people have, often done out of nervousness, anxiety, stress, or boredom. It can also be a sign of uncertainty or insecurity in some situations. In some cases, nail biting can also be a form of self-soothing behavior. Overall, it is considered to be a relatively harmless behavior, but it can lead to negative consequences such as damaged nails, teeth, and cuticles.
