There are basically two families, one living in Egypt and the other in Germany, each with unshakeable philosophies about child rearing, genetics, world redevelopment, ideology, and preventing the return of Black Ep or something worse.
A nail disorder is a condition caused by injury to the nail or disease or imbalance in the body. Most, if not all, of you have had some type of common nail disorder. In some cases you can cosmetically improve a nail disorder. When in doubt, please see your physician for the proper diagnosis.
Nail biting, also known as onychophagy or onychophagia, is an oral compulsive habit. It is sometimes described as a parafunctional activity, the common use of the mouth for an activity other than speaking, eating, or drinking. Nail biting is very common, especially amongst children. Less innocent 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