Originally published 2018-02-19.
Anxiety is not always loud. Alongside the familiar racing heart and shaky hands, it can show up as habits that look like carelessness, rudeness or simple quirks: a friend who stops showering for a few days, a colleague who picks at the skin around their nails until it bleeds, someone who talks too fast and overshares at a party. None of these behaviours proves that a person has an anxiety disorder, but each one can be a clue that something is weighing on them. Knowing the quieter signs helps you respond with patience instead of judgement.
Anxiety disorders are among the most common mental health conditions. The US National Institute of Mental Health (NIMH) estimates that roughly a third of adolescents and adults will meet the criteria for one at some point in their lives. What separates a disorder from ordinary worry is that the anxiety does not fade, turns up in many situations and can grow worse over time, getting in the way of work, school and relationships.
Why anxiety often hides in everyday habits
Most of us picture anxiety as a panic attack. In reality, a large part of it is invisible: constant scanning for danger, replaying conversations, bracing for bad news. That background effort is tiring, and the body looks for ways to release the tension. Small repetitive actions, avoidance and bursts of nervous energy are some of the ways it does so.
These habits are easy to misread. A messy flat may be taken as laziness, chatter as arrogance, a bitten lip as a bad habit to be scolded. People living with anxiety often feel ashamed of these behaviours and hide them, which is one reason friends and family miss what is going on.
Six quieter signs worth noticing
The list below is not a diagnostic checklist. Each behaviour has many possible causes, from tiredness to personality to a physical illness. Treat them as reasons to be curious and kind, not as labels.
1. Letting personal care slip
On a bad day, showering, brushing teeth or changing clothes can feel like one task too many. This is more often associated with depression, but anxiety and depression frequently travel together, and the exhaustion of constant worry can drain the energy needed for routine self-care. The pattern tends to come and go: someone may be well groomed most of the time and struggle only during difficult stretches. Pointing it out bluntly usually deepens the shame; a gentle "you seem worn out lately, how are you doing?" works far better.
2. Skin picking (dermatillomania)
Excoriation disorder, also called dermatillomania, means repeatedly picking at one's skin to the point of causing damage. Since 2013 the psychiatric manual DSM-5 has listed it as its own condition in the obsessive-compulsive and related disorders group, alongside hair pulling (trichotillomania). Estimates suggest it affects somewhere between about 1.4% and 5.4% of people, more often women, and it often begins in childhood or the teenage years.
Picking episodes are frequently preceded by tension or stress, and the act brings brief relief, which is what makes the cycle so hard to break. Over time it can lead to open sores, infections and scarring. It is not simply a "bad habit": behavioural approaches such as habit reversal training and cognitive behavioural therapy have the best support, and a doctor or dermatologist can help with wound care.
3. Nervous chatter and oversharing
Some anxious people go quiet in company. Others do the opposite: they fill every silence, speak quickly, jump into conversations with people they barely know or reveal far more personal detail than they meant to. Talking becomes a way to control an uncomfortable situation and keep awkward pauses at bay. Afterwards, many replay the conversation and worry about what they said, which feeds the anxiety again.
4. Talking to yourself
Thinking out loud is common and, on its own, perfectly normal. Plenty of calm people do it to plan a day or work through a problem. For some anxious people, though, muttering through worries or repeating a to-do list under their breath is a way to keep spiralling thoughts in order. It is the context that matters: constant anxious self-talk, often critical in tone, is different from cheerfully narrating a recipe.
5. Biting nails, lips or cheeks
Nail biting is one of the most familiar stress habits, and many anxious people also chew the inside of their cheeks or the skin of their lips. When it becomes severe, it can cause bleeding, pain and infection, and like skin picking it belongs to the family of body-focused repetitive behaviours. The person usually wants to stop and feels frustrated that they cannot. Telling them to "just quit" rarely helps; practical substitutes and professional support often do.
6. Fidgeting and restlessness
Tapping feet, drumming fingers, clicking pens, bouncing a knee: restlessness is listed among the physical symptoms of generalised anxiety. Movement can burn off nervous energy and make waiting bearable. Repetitive checking or tapping that follows strict rules, and that the person feels unable to resist, can point instead towards obsessive-compulsive disorder, which is a separate condition with its own treatments.
The more familiar symptoms
The quieter signs sit alongside the better known ones. Persistent worry that is hard to control, trouble sleeping, irritability, muscle tension, difficulty concentrating, a sense of dread, sudden waves of panic with a pounding heart or breathlessness, and avoiding places or situations that feel threatening are all common. Physical complaints such as stomach upsets and headaches can also be part of the picture. Because several of these overlap with medical problems, a check-up with a doctor is a sensible first step for anyone experiencing them.
Myths that get in the way
"Anxious people are just weak or dramatic." Anxiety disorders are recognised health conditions influenced by genetics, life experience and stress. Many people with anxiety manage demanding jobs and families while quietly carrying the extra load.
"You can tell someone is anxious by looking at them." Often you cannot. Many people mask well, and some of the clearest signs happen in private.
"These habits are harmless." Most fidgeting is, but picking and biting can cause real physical harm, and neglecting self-care can be a sign that someone is struggling more than they let on.
"Talking about it makes it worse." A calm, private conversation usually brings relief. Being noticed and accepted is one of the strongest buffers against shame.
How to check in without diagnosing someone
If you recognise some of these signs in a friend, partner or colleague, resist the urge to announce a diagnosis. You are seeing a few behaviours from the outside; the explanation may be something else entirely. What helps most is a simple, specific and private approach:
- Describe what you have noticed without judgement, for example "you've seemed on edge this week."
- Ask an open question and then listen more than you talk.
- Avoid jokes about the habit and do not ask them to stop it in front of others.
- Offer practical help, such as company on a walk or help with a task that feels overwhelming.
- Respect their choice about how much to share, and keep the door open for later.
If the worry, picking or avoidance is persistent or is disrupting daily life, encourage them to talk to a doctor or a mental health professional. Anxiety disorders are treatable, most often with talking therapies such as cognitive behavioural therapy, sometimes combined with medication that a doctor can discuss. If you are worried that someone may harm themselves, contact local emergency services or a crisis line straight away; in the United States you can call or text 988.
If you see yourself in this list
Recognising your own habits here is not a reason for shame. Many people only realise that their skin picking, fidgeting or late-night spirals are linked to anxiety when they read about it. Noticing when the habits flare up, what tends to trigger them and what brings relief can be useful information to take to a doctor. Small steps, such as keeping hands busy with a fidget toy, covering nails or fingertips, or building short breaks into a stressful day, can help in the meantime, but they work best alongside proper support rather than instead of it.
Sources: NIMH: Anxiety disorders; Wikipedia: Excoriation disorder. The original list was inspired by articles from Learning Mind, The Mighty and WebMD.
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