Biting nails as a habit

Many people bite their nails everyday as a nasty habit and I have noticed that I am one of them.   A person many times start biting his finger nails when he or she is in stress, feeling boredom, hunger or in nervousness and wants to get rid of these by biting their nails. It can also be caused due to mental, emotional or physical disorder. I know that I bite my nails when am nervous, and when am bored. However, sometimes I do it because am already accustomed to doing it and I bite my nails without even realizing sometimes.  I found ways that I can stop this habit. Some ways are :we can try to avoid nail biting by holding any object or thing that keeps your hands busy whenever you feel like biting. Girls can use nail paints to avoid the habit or you can apply products made to resist nail biting by applying it on your nails. These products leave a  bad taste in your mouth whenever you bite nails. So whenever you try to bite your nails you will remember not to bite. You can also put a stretchy band around your wrist which will constantly reminds you of your resolution. I have tried putting nail polish on my nails but this does not work for me I still continue biting my nails but maybe it will work for others. So everyone break this nasty habit.