As far back as I can remember, the longest I've gone without biting my nails is probably a few months at most. You think I'd stop sooner, what with just about everybody around me telling me it's a gross and nasty habit, but their criticisms never really bothered me.Do you bite your nails? Why do you do it? Do you bite them on purpose, or does it happen when you're not paying attention?If you're a nail biter, you've probably been told that you do it because you're nervous, anxious, or frustrated. But do you actually believe that? I know that I'm calm most of the time, and in fact I often catch myself biting my nails unconsciously, during relaxing moments while reading or watching a movie.As it turns out, nail biting and other similar habits may not be indicators of anxiety at all, at least not in the way you might think about it. In fact, if this study is right, maybe being a nail biter isn't a bad thing at all!