Question

what is the science beside nail biting?explain...
is it good habit or bad habit???​

Answer 1

Answer:

Nail biting is very common, especially amongst children. 25-30 percent of kids bite nails. More pathological forms of nails biting are considered an impulse control disorder in the DSM-IV-R and are classified under obsessive-compulsive and related disorders in the DSM-5. The ICD-10 classifies the practice as "other specified behavioral and emotional disorders with onset usually occurring in childhood and adolescence".[1] However, not all nail biting is pathological, and the difference between harmful obsession and normal behavior is not always clear.[2]

Explanation:

nail biting is a bad habit

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Answer 2

Nail biting is very common, especially amongst children. 25-30 percent of kids bite nails. More pathological forms of nails biting are considered an impulse control disorder in the DSM-IV-R and are classified under obsessive-compulsive and related disorders in the DSM-5.