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[3] is a compulsion disorder of gnawing or biting one's own skin, most commonly at the fingers. This action can either be conscious or unconscious [ 4 ] and it is considered to be a type of pica . Those affected with dermatophagia typically bite the skin around the nails, leading to bleeding and discoloration over time.
Nail biting, also known as onychophagy or onychophagia, is an oral compulsive and unhygienic habit of biting one's fingernails. It is sometimes described as a parafunctional activity , the common use of the mouth for an activity other than speaking, eating, or drinking.
This is the most widely used classification since sleep bruxism generally has different causes to awake bruxism, although the effects on the condition on the teeth may be the same. [7] The treatment is also often dependent upon whether the bruxism happens during sleep or while awake, e.g., an occlusal splint worn during sleep in a person who ...
Hypnic jerks, also known as sleep starts or hypnagogic jerks, are abrupt muscle contractions, or twitches, that happen as soon as you fall asleep. Up to 70% of adults will experience at least one ...
There have been many different theories regarding the causes of excoriation disorder, including biological and environmental factors. [10]A common hypothesis is that excoriation disorder is often a coping mechanism to deal with elevated levels of turmoil, boredom, anxiety, or stress within the individual, and that the individual has an impaired stress response.
In more severe cases, the motions may become harmful to the individual, and may involve things such as ripping, tearing, or chewing at the skin around one's fingernails, lips, or other body parts to the point of bleeding. Psychomotor agitation is typically found in various mental disorders, especially in psychotic and mood disorders.
PLMD is characterized by increased periodic limb movements during sleep, which must coexist with a sleep disturbance or other functional impairment, in an explicit cause-effect relationship. [ 3 ] [ 4 ] Usually, these involuntary movements come from lower extremities (including toes, ankles, knees, and hips), although they can also be observed ...
A hypnic jerk, hypnagogic jerk, sleep start, sleep twitch, myoclonic jerk, or night start is a brief and sudden involuntary contraction of the muscles of the body which occurs when a person is beginning to fall asleep, often causing the person to jump and awaken suddenly for a moment.
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