It is true that when you use the self improvement program of Lee Milteer "Habit Busting- A 21 Day Program to Break Any Habit" It is true that this program proves quite effective to stop nail biting. She teachers you step by step process to break this nail biting habit and lets you learn some positive productive habits.
This program teaches you one of the most effective ways of breaking bad habits like nail biting. Even though the whole program goes on talking about the same method to break habits like nail biting, yet it proves quite effective to stop nail biting.
But you can also opt for Neruo-linguistic programming (NLP) to stop nail biting. NLP or neuro-linguistic programming works on the idea that our senses could help us perceive only a small portion of the world. This whole program uses axioms, beliefs and a complete set of techniques that allows personal development which results in busting of bad habits like nail biting. This program works on the concept that your mind, body and language actually reflects your interaction with the world and these could be modeled to change this perception which could actually help in getting rid of bad habits.
Nail biting is really a habit that needs careful attention and with the help of these methods you could actually stop nail biting.
You no longer have to do 21 programs in order to change habits. They rarely work and there are much faster and painless ways to stop biting your nails.