What Do Nail Biting and Hair Twirling Reveal?

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What Do Nail Biting and Hair Twirling Reveal?
Mrs Katie Rogers asks

I am currently writing my dissertation on the stigma surrounding nail biting and hair twirling, I was wondering if possible could you provide me with any information these aspects of body language reveal about the individual?

Why We Bite Our Nails and Twirl Our Hair

Nail biting and hair twirling are among the most common self-directed habits. Both can happen with or without conscious awareness, and each offers a window into how someone may be feeling at a given moment.

These behaviours often begin in childhood and can persist into adulthood. While they are usually harmless, understanding what triggers them can be useful for anyone who wants to manage or reduce them.

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What Nail Biting Can Tell Us

Nail biting is a nonverbal behaviour that many people associate with nervousness or anxiety. For most, it begins in childhood and becomes a go-to response during moments of stress, boredom or restlessness.

In everyday situations, nail biting tends to serve as a way of channelling excess energy. It may appear during a difficult phone call, while waiting for an interview, or when watching something tense on television. For the majority of people, the only real consequence is cosmetic: shorter nails and occasionally sore fingertips.

However, in more persistent cases, nail biting can become a repetitive behaviour that causes physical damage to the nails and surrounding skin. Some researchers have linked severe nail biting to higher levels of anxiety or lower self-esteem, though this varies from person to person. It can also be associated with other body-focused repetitive behaviours, which may benefit from professional support.

If nail biting is causing distress or physical harm, speaking with a GP or a therapist trained in habit reversal techniques may help. Organisations such as the NHS and the British Association for Behavioural and Cognitive Psychotherapies can offer guidance on finding appropriate support.

Your situation may be slightly different. ask a question below ↓ and our editorial team will reply with our advice.

What Hair Twirling Suggests

Hair twirling is another common self-soothing gesture. Like nail biting, it can be either a conscious habit or something done without thinking.

For many people, twirling hair is simply a way of self-comforting during idle moments or mild stress. It may occur while reading, thinking or relaxing. In social settings, it can sometimes signal nervousness or distraction, though this depends heavily on context.

Occasional hair twirling is rarely a cause for concern. In some cases, though, it can become compulsive and lead to hair pulling, known as trichotillomania. This is a recognised condition that may require support from a mental health professional.

When to Seek Support

Most people who bite their nails or twirl their hair do so without any lasting negative effects. These habits are common and, in most instances, fairly easy to manage with awareness and simple strategies.

If either habit is:

  • Causing physical damage
  • Interfering with daily life
  • Linked to feelings of shame or distress

It may be worth discussing with a healthcare professional. Cognitive behavioural therapy has been shown to help with body-focused repetitive behaviours, and your GP can provide a referral if needed.

Understanding these small gestures can offer insight into emotional states, but they should be read in context rather than used as definitive indicators of character.

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BodyLanguageExpert Editor 17/08/2026 at 9:23 am
@Kalypoo Yes, it can. Regular nail biting can damage the nail bed, push bacteria from your fingers into your mouth, and lead to skin infections around the nails. It's also linked to dental problems like chipped teeth and gum damage over time. Most people bite when stressed or bored, so working out the trigger helps more than just telling yourself to stop. Bitter-tasting nail varnish is a decent nudge if you want something practical to try. If it's drawing blood or you can't shake it, worth a chat with your GP.
Kalypoo 17/08/2026 at 9:23 am
Can nail bitting cause health issues
BodyLanguageExpert Editor 21/05/2026 at 9:18 am
@ST That superlative was genuinely mean, and you're right to call it out. Soothing habits like hair stroking often start in childhood as self regulation and simply stick around because they feel nice, no ongoing anxiety required. If most people don't mind and you enjoy it, there's no real reason to force yourself to stop. The fact you've already adapted by wearing it up suggests you've found a sensible middle ground.
ST 24/07/2023 at 12:29 am
I’ve been a hair twirler and nail biter my whole life. I mostly do it bc it feels good. In high school everyone was given a superlative award, and a teacher gave me they award for “most likely to twirl their hair.” In retrospect I find that rude and in edit I’ve, considering others were given things like “most creative” etc… it’s like telling a teenager you’re most likely to smell bad or stutter or whatever. Stupid teachers. Anyways I embrace it as an eff you partly bc of that. I also wear my hair up as an adult every day of my life to minimize chances of me touching my hair so much. More recently, I’ve noticed that at work, whenever I engage in an interesting conversation with coworkers and give them my full attention and focus, I start touching my hair. It’s not so much twirling bc i always wear my hair up, it’s more like I’m stroking my hair roots in the back of my head bc they’re soft and smooth. Most of the time I’m conscious of it but not initially, and then once I realize how annoying it must be to other ppl or how strange i must look with my arm up, I apologize, laugh it off and try to stop. most ppl are nice and don’t mind or think much of it. I like it Bc it feels good so I don’t see it as a huge problem and this don’t have much incentive to stop. I also do it while relaxing at home after I let my hair down. So that leads me to believe it’s not stress or anxiety-related. It’s just a bad habit. It is possible i developed it as a result of trauma/stress or shyness as a child tho, who knows??????? i was a very introverted shy/timid child by nature
Sue 18/09/2020 at 9:02 pm
I have a very bad habit of twirling my hair, putting it in my mouth and bitting my hair off. Iv had this habit for about 20 years but only just found out it can be a mental illness, is this true? I already suffer with anxiety and panick attacks
Pat 04/09/2020 at 7:52 pm
I have twisted my hair for years as had my grandmother, mother before me and now my daughter, and my granddaughter. Mostly not aware of doing it. Only do it at home when relaxing. Not really aware of any hair damage. When my hair is short I never twist it, only when the hair gets long.
Amber 25/01/2020 at 10:24 am
I too am a twirler. I have done it as far back as I can remember and believe I do it just because it feels soooo nice! Mostly it happens when I am relaxing, reading or driving (only when the car is stationary). I am not conscious of starting a twirl - it just happens. Thinking about the cause- when I was 18 months old I was hospitalised in isolation for six weeks and my parents were only allowed to see me through a window. This broke my bond with them and afterwards I would scream if they tried to cuddle me. I think the habit could have come from having to be nice to myself.
Lynn 25/01/2020 at 1:39 am
I've twirled my hair for year's and I have curly hair so I just got in the habit of wrapping the curl around my fingers, that's why I do it.
T3000 10/12/2019 at 6:30 am
@Lcd - I do the same thing. It’s awful how much hair I’m losing from the untangling of the knots. I even get headaches from this repetitive action I can’t seem to stop!
Lcd 29/11/2019 at 12:02 am
I have been twirling my hair for as long as I can remember. I don’t realise I’m doing mostly, and am constantly making tiny notts, which always become completely tangled and result in me ripping out the not. How can I stop this behaviour? I seem to do it without even realising and am worried I will have no hair left
Juju 24/05/2019 at 6:39 pm
I'm 38 years old and I'm guilty of both nail bite,and hair twirl. I have never been accused of being shy. I do find twirling soothing. And I tend to loop the twist around my forefinger and rub the smooth side of the loop with my thumb..I've caught many people stare at this action with their mouths open as if amazed...but I wasn't cognizant that it could be construed as flirtatious. I also will twist tightly and let the twirl wind in on itself into little knots that stay by themselves near my scalp, then, I attack all smooth sides with all the fingers God gave me! I enjoy it. Driving, at the movies, watching TV....people will take my twist away from me..but they usually laugh at my facial expression and give it back. I will rub it on my cheek,chin, or lips as well. I don't mean to do it..but I don't not mean to either..if that makes sense. I likewise wish I could stop with the nails but just find comfort in the habit. I was mistreated as a child for thumb sucking. But quit that easily when I got braces at 13.. I'm happy to keep the rest of my habitual quirks. I'm awesome and hope you use some of my details in your dissertation??
Tjay 30/12/2018 at 8:41 pm
I have a similar issue & i've been doing it since i was maybe 4 years old. I twist my hair in little knots in the front or the side of my forehead & press them in between my thumb nail & finger nails...sometime pulling knots out. Ir got worst in my 20's when i would get my hair braided or cornrolled cause i would usually day dream and "finger twist" the tips of my braids through my finger nails. Now that im 33 with no head hair, i found myself doing it with my chin hair & it's getting embarrassing. I do it without thinking and have to usually force myself to stop. It's usually happens when im thinking about something or just casually driving. Any advice on how to stop?
Miky 23/11/2018 at 9:15 pm
I for years since a child have prickled and jabbed my hair like needles into my lips,edge of eyes,brow and any other sensitive area where i get a sharp prickly feeling.over 30 years ive done this now but feel addicted.is this a nervous problem?it feels satisfying and more so when it gets a spot that feels its going to pierce.This isn't a joke question.i just want to know why i do it.
Treewitch88 15/10/2018 at 8:12 am
Huh... That's funny. I have always twirled my hair while in deep thought...but never when nervous, anctious, self-conscious or flirting. Wonder what that means.
hategirl087 28/02/2018 at 12:12 am
I love it when my husband grows the top of his hair out but it really bugs me when he keep playing with his hair and he doesn't even know he's doing how do I get him to stop..
BodyLanguageExpert Editor 27/02/2018 at 10:48 am
There are many reasons as to why you might feel the need to do this; it is quite therapeutic which is why it probably becomes a habit. Here are some ideas to help you stop:
Tie up your hair so you can't twirl it
Use a fidget spinner, or squeeze ball etc, to keep your hands busy so you're not tempted
Focus on something else everytime you feel your hands drifting towards your hair - like a colour for example. You can then look for something that colour in the room as a distraction.
autumn 24/02/2018 at 3:35 am
I've broken my habit of nail biting, but I still constantly twirl my hair. I also have a habit of rubbing the softest parts against my face and lips unconsciously, it gets a little irritating sometimes because people automatically assume I'm chewing on my hair. Is there any specific reason I feel the need to rub my hair on my lips (I do it at least once every 5 minutes) or a way to stop it?
tt or ty 26/11/2017 at 10:17 pm
i started twisting my hair at the age of 14 and im 17 now it feels good when i pull at it and all but now i dont know how to not do it in front of people it causes a distraction to people and i feel as though it may interfere with me getting a job .What should i do ?
Tiherfru 03/10/2017 at 3:49 pm
I'm 36 years old. I've been biting my nails since I was about 15. My fingers are just disgusting to look at. It super hard to stop now and I bite only when I'm working and I have to think about something. I work in IT so when my fingers are not on my keyboard, they just fly to my mouth. The act is part conscious, part unconscious. The subconscious part happens when my fingers feel each other and they find a nicely shaped long nail. Sometimes I just raise my hand and take a quick look at my nails to see what's chewy on it. That part is almost unconscious.

I don't think your theory applies to me. Maybe I'm the exception to the rule. My self esteem is ok I think. And I don't bite because I'm nervous or anxious or depressed. At my happiest moments I still bite them. Fact is when I'm biting I really enjoy it. It's like bursting bubble wrap or something.
Lottie 27/08/2017 at 6:57 am
Lately, I have started to style my long hair in my sleep, ie I wake up plaiting it or making a bun. What does this mean please?
BodyLanguageExpert Editor 24/05/2016 at 2:17 pm
Chippy - Your Question:My son had patch of alapicia at start but he then started twirling hair and now has large bald patch down side of head. He also bites his nails. We trying to strengthen hair but while he still twirls I'm not sure this will help. Trying to think what we could get to occupy that twirling hand!Our Response:
Chippy 23/05/2016 at 10:10 am
My son had patch of alapicia at start but he then started twirling hair and now has large bald patch down side of head. He also bites his nails. We trying to strengthen hair but while he still twirls I'm not sure this will help. Trying to think what we could get to occupy that twirling hand!
Relaxpeeps 15/03/2016 at 11:26 am
Hello :)

My 10yr old daughter bites her nails.
My 5yr old son twirls the crown of his hair.
They are both normal, happy & loved.
She does it when bored. He does it when he's tired or thinking.
I don't do either & my life was full of very difficult events.

Unless you feel it's making your life a misery eg bleeding nails or hair loss - relax! It's ok
Be happy, spend time friends, exercise, smile a lot and look for the joy in every day life.

Good luck everyone :)
BodyLanguageExpert Editor 19/02/2016 at 10:53 am
Try continuing with the confidence building and make sure she has something to keep her hands occupied when she's watching tv etc...such as a doll that she could dres or play with the dolls hair etc. It is quite common for children bite nails and play with their hair (even sucking at the ends of it) at this age, but your GP may be able to reassure you, or establish whether it's an indication of some other problem.
donnabambonna 18/02/2016 at 8:08 am
My little girl has bitten her nails and twirled her hair since she was about 19 months, she started when her little sister was born which will prob link in with stress and anxiety, but she comes across as her confident little girl, I would hate to think she has low self esteem at school, she will be five the middle of March, she has now started pulling at her hair, all of these behaviours seem to be getting a habit, they seem to be more prevalent when she is bored or watching the telly, I bought her a fiddle toy which has helped but do you think getting in touch with the doctor is the next step? I did mention it to the health visitor and she told me to ignore it for her 2 yr check up, x
Katy 18/02/2016 at 1:15 am
I am 18 years old and I have been twirling my hair since I have 5.i use to twirl my hair around my finger until my finger went purple. I stoped for a couple of years then when I started again when I went to high school but this time when I twirl my hair I wasn't happy until I could hear my hair rip.i am still constantly twirling and pull out my hair and it is start to frustrate me
Shell 04/02/2016 at 9:54 pm
I believe since I was in my teens I've been doing this thing with my hair especially with braids in my hair I have this thing to where I braid my hair but then once it's done I would take a braid down and re-braid my hair everytime I can't call it I have no idea why
Jay 28/01/2016 at 6:00 pm
I play, knot, twist and pull my hair, have done for as long as i remember. I've never been able to stop myself and it's embarrassing if someone sees you. The only thing that stops me when im watching tv is wearing a pair of thin cotton gloves which you can buy from the pharmacy. You can actually get hold of strands of hair and can't feel that roughness of your hair so it makes it impossible to do. Try it.
BodyLanguageExpert Editor 05/01/2016 at 10:16 am
Ask your GP for help, he/she may be able to refer you for counselling, hypnosis or therapy.
Kassie 02/01/2016 at 10:24 am
I have been biting my hair off for a while now. I don't know how to stop. I used to pull out my hair but then stopped when I lost weight because I felt better about myself. I guess having confidence was the key. I later started biting it after I went through a traumatic relationship and I gained the weight back. The nightmare started all over again for me, except this time it was a lot worse. I need help and advice. It makes me feel very sad/depressed and it has gotten worse. Although nobody notices because my hair doesn't look that bad, I don't want it to get bad. My hair grows but I need to stop. Yes, my self-esteem is low, despite the good things people tell me. It was a very hard year in 2015 and I want this year to be the year I stop biting my hair. I want to better my myself and my emotions. I'm tired of letting people and things put me down. I know it's my choice to stop and get better but I can't do it alone. If you can help, please help me.
BodyLanguageExpert Editor 14/12/2015 at 1:56 pm
That's for your doctor to advise you on. You could ask about other treatments as well as medicinal, such as hypnosis, coginitive behaviour therapy etc.
Andrea 14/12/2015 at 12:23 am
I constantly play with my hair, braiding it knotting it and twirling it until my arm is tired. I used to bite my nails really bad but I managed to quit and now I only do it if I'm nervous. I also noticed that I pick at the rubber on my phone case, I've picked off the volume buttons multiple times. I was diagnosed with add a few years ago but I stopped talking the medicine after a month or so... Do you think if I go to the doctor and get on the medicine again this will all get better?
Tia 11/12/2015 at 3:20 am
I have twisted, clicked, knotted till I have to cut the knot out. I wish I could stop.
rascott 06/12/2015 at 3:31 pm
I am 39 and all my life have twisted, then clicked my hair! Twist it in my fingers, hold it tight and flick it until it makes a clicking noise, then twist it some more!! Have tried just cutting it very short (like #1 clippers) and as soon as it grows long enough, I am back to twisting again!! Have never figured it out.
€milia 06/11/2015 at 7:36 pm
I'm a 16 year old female and I find it very difficult to concentrate during class because I'm always petting myself and running my fingers down strands of my hair. I stroke the top of my head until I find a looped knotted out of place or rough hair and then I pinch it and drag my fingers along its length. If I find that its very rough and short I will pull it out to examine it closer. I may or may not take a chunk of hair and put it against my lips/cheek and put pressure over them for a few seconds. I will continue this process for hours until my arms are very tired and my fingers almost feel raw from overstimulation. I first noticed myself doing this about a year ago and it's been getting worse ever since. I'm tired of looking weird and worrying that I'm distracting my peers as well as myself. I also have anxiety, ADD, and OCD. Please help me break this frustrating habit!
Adri 26/10/2015 at 6:55 pm
So I'm 16 years old and all my life I've twirled my hair and pressed it up against my face and my parents would always tell me to stop but it seems as if I can't. Like this has become apart of my daily life because I do it every day.. I feel like it makes me feel better and I'm wondering how a habit like this could really make someone feel better..?? Like how does it work..?? Because it would be nice to know to explain it to the people I have in my class's because they think I'm weird. But I can't help it.
Cassie 26/10/2015 at 2:32 pm
I'm 27 and I've been twisting, playing, and making loosing knots since I was a child. My whole life I had short hair and I would still twist what I could. I finally have grown my hair out for the first time and I'm constantly messing with my hair one way or another. I can't stop sometimes I do it so much it gives me a headache and my arms are super tired! It's just so exhausting! I'm just glad I'm not the only one. Growing up I just felt like the wearing crazy girl at school.
joey 27/09/2015 at 1:48 am
Its annoying to watch people playingbwith their own hair
yce 27/07/2015 at 6:57 am
I am one of you that is experiencing this disorder since i was a little up to now, I tried to google it now while im at work coz I noticed that it's getting worst than I expect it. at first i thought it was some kind of mannerism but it's not. I knot my hair, pull and squeeze it to my lips of part of my cheeks that would result to headache. Now, i am seeing your sides that we have both problem. I don't want to drink medicines that mentioned above. When I was in college I stopped thumb suck, biting nails but now it seems twirling of my hair is the hardest part one to stop.
Jen 08/07/2015 at 9:26 pm
I twirl my hair constantly! I do it without realising, but what I have realised is that I do it more so in stressful situations. It comforts me in a way. Nail biting, I have never done.
d light 11/06/2015 at 10:54 pm
I work with a special ed boy who does something similar. He sucks on his arm when he is most high strung . He is a very nervous child. I observed a girl who rocks and stimulates herself when anxious. She has a mild form of autism bc she flaps her hands in the air also when she is stressed and excited, right before a event. I also watch on woman who stimulates her lips with her hair when she is stressed, tired or insecure.

I feel what you all describe is something that comforts and reduces stress for yourselves. have you noticed it takes place more when you are experiencing a lot of stress? I believe it is how the body deals with a neurotransmitter shortage. Perhaps a walk or exercise will help, build up serotonin shortage.
Caden 19/05/2015 at 4:11 am
I'm 22 and I can't stop twisting and knoting my hair line on each side. I dont know how to stop. Anybody know what the secret is? Its getting bad.
Noah 07/04/2015 at 4:24 am
I'm a 16 year old boy and I have always twirled my hair as long as I remember except is twirl it and the i like to scratch the hair and then let it go. I don't know what causes me to do this it kinda meses with my hair so would be nice to know why i do it =D.
uktwiddler 31/03/2015 at 10:37 pm
I have twiddled my hair since I can remember. I now find myself a 28 year old and in the exact same situation. I cannot pin point what the trigger is for this and am at a loss as to why I do it. It hasn't really occurred to me that it isn't normal until recently. I tend to twiddle into plaits and then play with it before releasing and repeating for hours on end. I find myself in phases, 1 week on 1 week off dependent on my mood/state of mind I guess. Anyone have any suggestions as to why we twiddle the s**t out of our hair?!?!
KatieBug 28/12/2014 at 12:50 pm
I have been twirling my hair for as long as I can remember. Like many I even resorted to getting my hair cut very short in an effort to break the habit, but as soon as my hair grew out I started again. I also rub my hair against the side of my face and my lips. I find I do this more when I am concentrating on something than any other time. I have also noticed that I don't do it specifically when stressed and I rarely feeling particularly nervous when engaging in this behavior. Most of the time I do it without even realizing it. Since it is not particularly harmful, I have just ignored that habit.
teresa Editor 24/11/2014 at 10:30 am
@Trey. Yes I know many people who twist their hair while watching tv etc. I do it myself as does my sister. I also plait it and undo it over and again! The way I see it is that it stops me 'snacking' on unhealthy food so it can't be doing much harm :)
Trey 21/11/2014 at 6:15 am
Been twisting my hair longer than I can remember, I'm 48 now. Recently married a nurse with 3 master degrees and she keeps telling me that twisting my hair is a compulsive disorder/problem. I do it when I'm watching t.v. Behind closed doors. It relaxes and fells good! so has there been any medical advice/articles that have put twisting hair into a positive condition? Would love to have her see that stuck in one of her medical journals!
My son started twisting his hair right after his birth and I still catch him 10 years later twisting his hair while watching t.v..
Lerlips Editor 04/11/2014 at 8:58 am
@compulsive?
Wow, you have described my hair twisting process with every detail except for the mouth part, even when my hair was long enough I didn't have the urge. I have five or six spots on my head that I regularly go to town on and the goal is always that little puffy ball you describe. I let it go, just as you say, sometimes only to grab it immediately and repeat. It's crazy to think of what percentage of people do this same exact thing (I bet the % isn't a big number but constitutes a large number of people).The only thing, to date, that has helped me has been practicing mindfulness. I started to see that most of the time when I was biting my nails and/or twisting my hair, my mind was racing all over the place, never thinking in the moment but of things in the past or things to come. When I could stop myself from doing this I became a much less anxious person. It takes some dedication though and more importantly, meditation. Some people see that word and cringe, but it truly helps. At first, I was challenging myself to be thoughtless for five minutes and quickly realized I couldn't make it five seconds. Now, five minutes is flying by and I'm determined to help myself stop both of these habits altogether. It's working
BodyLanguageExpert Editor 27/10/2014 at 10:45 am
@compulsive. You should mention this when you are being treated for your other issues. If you would like it to stop, then there will be help available for you to do that too. Good luck.
compulsive? 24/10/2014 at 2:32 am
I've never actually stopped to look into this until now, but i would consider myself a compulsive finger picker and hair "twirler". Im 24 years old and have been doing both since i can remember, the finger picking can hurt, especially as the air gets colder and my fingers get drier, the bleed alot. But ive never thought my hair twirling was a problem, but concerned me with what underlying things I may have mentally. And its not even that I just twirl my hair, i twist it into loops, and press the loops against my fingers and lips. I can do this for a very very long time. I also loop and twist my hair to the root and then squeeze it like a soft ball and left it go. Ive been diagnosed with ptsd, depression, anxiety and adhd. Im not really sure what to think of these habits, but it makes me feel "different"
brasher Editor 08/10/2014 at 10:16 am
@DeeAnonymous. Yes and I think once you're in the habit it's hard to break it too.
Dee Anonymous 07/10/2014 at 8:12 pm
When I was much younger I used to eat the skin around my fingers nails to the point of beeding, I realized much later this was just as much as nail biting and self-hurt. Every little skin which is pealed oit or crust i feel the need to take it out. I do touch my hair and face constantly i guesss this is a sign of insecurity too.
Tatum 30/09/2013 at 7:19 pm
I was definitely physically and mentally abused as a small kid right up til ...well recently as in only a few years ago - I finally "woke" up and decided I don't need to accept being a punching bag or a dump zone for others.
I bit my nails as a little one and twiddled my hair constantly. Now I don't bite my nails and only twiddle when in situations I find anxiety ridden, I have a very pragmatic side and was able to discern where my anxieties came from and talked myself thru them into no longer biting nails and occasional hair twiddling.
I developed a way of quietly deep breathing to slow everything down and always ensure I get my alone time to refocus and relax my mind by meditating, even if it is only a few minutes per day. I find a way. Although it has taken me years to get here, I'm glad I persevered.
jen23 14/12/2012 at 6:48 am
i have the same problem, please help me, I hate biting my nails and hair twirling. im not sure why i do it
Just somebody 22/11/2012 at 4:27 pm
Hello! In response of the hair twirling you could try putting your hair up (with no loose strands). As for the fingernails i can't really help :/ you could try dipping your nails in something like lemon juice(?)
Chance 18/05/2012 at 10:57 pm
I am 18 years old, i bite my nails till theres practically nothing left. Also, i have a big bald spot on the right side of my head towards the neck area due to hair twirling. Please give me some advice and some causes an symptoms of these horrible problems i hate them. -extreme nail biter/hair twirler :/

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