Biting your nails Some people have a habit of biting their nails. They might do this when they are worried about something, but often nothing bad is happening, they just bite them. They may bite their nails so short that they bleed, or the skin around the nail becomes very red and sore. It is not known why some people bite their nails and others do not bite them. People who bite their nails are unlucky to have this habit. They are not 'bad'. Stopping biting nails is really, really hard. Some people try horrid tasting nail paint, but often this does not work. People who do not bite their nails often have lots of ideas about what should work, and they can make people who bite their nails feel ashamed because most of the time these ideas do not work. If your friend bites her nails, do not give her a hard time about it. If it was easy for her to stop, she would have stopped by now. Tell her about some of the things you like about her if she is stressing about her nails....