Minor Behavioral issues
Nail Biting, hair pulling!
The nail biting habit is persistent and related in nature to other stress-related manners, including skin picking and hair pulling. Essentially, these actions fulfill a natural urge; thus if the urge is not satiated or eliminated, the behavior will start again. The rates of Nail Biting; 7 -10 years old to 20–33% and 45% during adolescent
•People who have hair pulling (trichotillomania) have an irresistible urge to pull out their hair, usually from their scalp, eyelashes, and eyebrows. Trichotillomania is a type of impulse control disorder and generally unreported.
Nail biting is a common, but unresolved, problem in psychiatry, psychology, medicine and dentistry. While it seems that it’s a simple behaviour that can be stopped easily, many of the children with NB have already tried to stop it, but they have not been successful. The frustrations due to failed attempt involve others such as parents and siblings. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3556753