Maybe a Science of the Spirit candidate? Admittedly not that "deep" (I get a little self-conscious posting this amongst the political topics that seem to make up most of the suggestions), but perhaps useful to someone.
_http://www.huffingtonpost.com/2015/03/13/nail-biting-nervous-habits_n_6854152.html?utm_hp_ref=mostpopular
So, the gist; compulsive or habitual nail-biting, eyelash-pulling, skin or sore-picking, cheek-biting, and other body-centric habits may have roots in perfectionism, which we know has roots in narcissistic family dynamics, as laid out in the Big 5 narcissism books (I haven't read all of them yet, though) as well as Fear of The Abyss. I have actually engaged in all of the behaviors I listed to relatively minor, but probably still indicative, degrees, and I know I have perfectionism and control issues.
The most revealing line for me was, "...they are unable to relax and to perform task at a ‘normal’ pace." This applies to me quite a bit. Feedback since I was young (and observation that I didn't keep up with others) has led me to often feel that I'm not working fast enough. When the perfectionism kicks in, though, I get "sucked in" and tend to proceed slowly because I over-focus on the quality or detail of what I am doing and forget the big picture or overall goal suffers, because I don't get around to everything. That and I may naturally have a slower pace at which I can process a task, I'm not sure. But enough about me.
For what it's worth.
_http://www.huffingtonpost.com/2015/03/13/nail-biting-nervous-habits_n_6854152.html?utm_hp_ref=mostpopular
People who are generally impatient, or who get bored or frustrated easily, are more likely to engage in repetitive body-focused behaviors such as skin-picking, nail-biting or eyelash-pulling, the researchers found.
The study, published in the March issue of the Journal of Behavior Therapy and Experimental Psychiatry, points to perfectionism -- a trait that can be more damaging than many people realize -- as an underlying cause.
“We believe that individuals with these repetitive behaviors may be perfectionistic, meaning that they are unable to relax and to perform task at a ‘normal’ pace," Dr. Kieron O'Connor, professor of psychiatry at the university and the study's lead author, said in a press release Tuesday. "They are therefore prone to frustration, impatience, and dissatisfaction when they do not reach their goals. They also experience greater levels of boredom.”
[...]
If you do bite your nails from time to time, there's no need to worry -- you're probably not doing much harm. In fact, the researchers say that such behaviors serve a temporary purpose when we're not able to channel our energy more productively.
"The positive effects of the habits are stimulation and a (maladaptive) way of regulating emotion," O'Connor said in an email to The Huffington Post. "What triggers the habit is largely frustration and impatience so the action substitutes for more constructive action."
But when the habits are difficult to stop and they interfere with daily life, they can become habit disorders.
[...]
So how could these behaviors be treated? Currently, there are two possible avenues -- a behavioral treatment that involves replacing the habit with a competing action, and a separate approach that focuses on the underlying factors that create tension, such as perfectionism and other negative beliefs, according to O'Connor.
"We look at all the thoughts and behaviors present in situations at high risk for the habit and change them through cognitive therapy to more resemble the thoughts and behaviors in low risk situations," O'Connor told HuffPost. "We do not address the habit directly so the person does not need to learn a competing response to replace the habit."
So, the gist; compulsive or habitual nail-biting, eyelash-pulling, skin or sore-picking, cheek-biting, and other body-centric habits may have roots in perfectionism, which we know has roots in narcissistic family dynamics, as laid out in the Big 5 narcissism books (I haven't read all of them yet, though) as well as Fear of The Abyss. I have actually engaged in all of the behaviors I listed to relatively minor, but probably still indicative, degrees, and I know I have perfectionism and control issues.
The most revealing line for me was, "...they are unable to relax and to perform task at a ‘normal’ pace." This applies to me quite a bit. Feedback since I was young (and observation that I didn't keep up with others) has led me to often feel that I'm not working fast enough. When the perfectionism kicks in, though, I get "sucked in" and tend to proceed slowly because I over-focus on the quality or detail of what I am doing and forget the big picture or overall goal suffers, because I don't get around to everything. That and I may naturally have a slower pace at which I can process a task, I'm not sure. But enough about me.
For what it's worth.