A large chunk of people has found themselves to be addicted to this bad habit. However, according to health experts, this goes beyond just being a bad habit. Firstly, it gives a direct pathway for germs hiding in your nails to directly enter your body through your mouth – increasing the chances of you getting ill. Secondly, it is also bad for your teeth, as it not only affects the enamel, but also brings your gums in direct contact with the germs residing in your nails. Add to that the toxins your nails possibly have, if you paint them! So, the next time you get an urge to bite your nails, just don’t.