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Nail Biting: Mental Disorder Or Just A Bad Habit?

08:20
Pathological nail biting may be a form of grooming on steroids, but it also makes the biter feel good, unlike fear-driven OCD. (Andrea Kissack for KQED)
Pathological nail biting may be a form of grooming on steroids, but it also makes the biter feel good, unlike fear-driven OCD. (Andrea Kissack for KQED)

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