Question

Biting nails should be strictly avoided.give reasons

Answer 1

because nail biting can be raised the risk of catching cold or other illness because you are putting your unwashed hand in your mouth

Answer 2

First of all, nails are not for chewing. In some people, nail biting is a manifestation of stress and some psychological disorder but in case it is not  good habit.

There are many risk factors along with nail biting. Such as:

-It is harmful because it can damage the skin around your fingers and increases the chances of infection.

-They double the chance of getting of cold and other infections