Depersonalization and derealization: when you feel unreal

CareOps editorial team · October 28, 2026 · 10 min read

Mental wellness information and service guidance published by CareOps.

Your face in the mirror looks unfamiliar, your hand doesn't feel like yours, or it seems as if you're watching yourself talk from somewhere behind. Or the street you always walk looks flat like a film set, and voices sound as if they're coming through a glass wall. These experiences are called depersonalization and derealization. The first time can be frightening, but brief episodes are more common than most people think. Here is what they mean, what they feel like, why they happen, what you can do in the moment and how they are treated.

What do depersonalization and derealization mean? #

The UK's National Health Service (NHS) describes depersonalization as the feeling of being outside yourself and observing your actions, feelings or thoughts from a distance, and derealization as the feeling that the world is unreal, with people and things around you seeming lifeless or foggy. You can have one or both, and they may last only a few moments or come and go over many years. In psychiatry, both are treated as forms of dissociation.

Depersonalization symptoms: what does it feel like? #

Here is how the MSD Manual describes these experiences, put into everyday words. They are hard to put into words, so many people just say “I feel weird.” Seeing which of these sound familiar can make it easier to describe what is happening.

• Watching yourself from outside: as if you were an audience member watching your own life.
• Body and mind don't feel like yours: your hands or voice seem unfamiliar, and you feel like a robot on autopilot.
• Emotional numbness: where joy or sadness should be there is a blank, and your body may feel numb too.
• The world seems like a dream or fog: as if a glass wall or veil separated you from your surroundings.
• Things look and sound different: objects look flat or washed out, and sounds seem too loud or too soft.
• A distorted sense of time: time seems to pass too slowly or too fast.

Feeling unreal for a moment is common #

A systematic review of studies on depersonalization and derealization (Hunter et al., 2004) found that 26–74% of people experience them at some point in their lives, and 31–66% at the time of a traumatic event. The MSD Manual also says about half of people have felt this way at least once. So a passing episode on its own is not a sign of serious illness.

These feelings tend to arrive when body and mind are worn out. In an experiment with 56 healthy university students (van Heugten-van der Kloet et al., 2015), dissociative symptoms increased in the group kept awake for 36 hours. The MSD Manual notes that stress, worsening depression or anxiety, new or overstimulating surroundings and lack of sleep can make symptoms worse. If the world felt far away after an all-nighter or during a stretch of exams or deadlines, start by catching up on sleep. If sleep doesn't come easily, see causes of insomnia.

Depersonalization, panic and anxiety: why do they come together? #

Depersonalization is closely tied to panic. Derealization appears on the list of panic attack symptoms, and the same review found that the share of people with panic disorder who have depersonalization or derealization symptoms ranged widely across studies, from 7.8% to 82.6%. For what to do during panic, see panic attack symptoms and coping.

A cognitive behavioral account of depersonalization (Hunter et al., 2003) focuses on interpretation. If a passing sensation is read as a sign of “going crazy” or of brain damage, anxiety rises, and that anxiety feeds the sense of unreality in a loop. Avoiding people or places because the feeling is frightening, repeatedly checking whether you are real and constantly monitoring the symptoms keep your attention locked on it. If anxiety shows up in several ways, see anxiety disorder symptoms and types as well.

It is frightening, but it is not “going crazy” #

The MSD Manual notes that people with depersonalization often fear they are “going crazy” or that their brain is permanently damaged. But in depersonalization you know the experience isn't real; it only feels that way. This intact sense of reality is what separates it from psychosis, where people hold thoughts that don't match reality without recognizing that they are unusual. Noticing that something feels wrong and worrying about it is itself a sign that this sense is still there.

When is it depersonalization/derealization disorder? #

According to the MSD Manual, it is considered depersonalization/derealization disorder when the experiences persist or keep coming back, are not caused by drugs or another mental health condition, the sense of reality stays intact, and they cause significant distress or make it hard to function at home or work. A diagnosis is made in a clinical visit, and tests are sometimes done to rule out other causes.

A more recent systematic review of 23 studies (Yang et al., 2023) also put the prevalence in the general population at about 1%, and found it more common among adolescents and young adults and people with other mental health difficulties. Rates were highest among people who had experienced abuse from others. The MSD Manual likewise points to links with severe stress such as emotional abuse or neglect in childhood. If distressing memories keep coming back, see PTSD symptoms and self-checks as well.

Coping with depersonalization: five things to try when it hits #

Rather than trying to force the feeling away, it helps to set down the frightening interpretation and bring your attention back to the here and now. The steps below put the methods in the MSD Manual and the cognitive behavioral view into everyday words.

1. Name it: tell yourself, “This is derealization. It comes when I'm worn out or anxious, and it passes.” You are replacing a frightening interpretation with a fact.
2. Come back through your senses: with your eyes open, name five things you can see, four you can feel and three you can hear. Our guide to grounding techniques has the full steps.
3. Use a strong sensation: put your hands in cold water or hold something cold, and focus on a clear sensation such as a sour taste or a scent.
4. Breathe out longer: let your out-breath be a little longer than your in-breath, a few times in a row. If you feel dizzy or more short of breath, stop and breathe normally. See breathing exercises for how.
5. Stop checking and return to a task: instead of looking in the mirror to check whether you are real or monitoring the symptoms, shift your attention to something you do with your hands or to the conversation you were having.

For the same reason, cutting back on all-nighters and keeping regular sleep hours helps, and if these feelings came after alcohol or drug use, it is worth remembering that. If you start avoiding people or places because the feeling is frightening, that avoidance can feed anxiety, so it helps to return to what you have been avoiding, starting small.

Depersonalization treatment: what helps? #

The NHS recommends talking therapies and psychotherapy for dissociative symptoms and notes that there is no specific medicine to treat dissociation. Medication is sometimes used for related depression, anxiety or panic; whether you need it is decided with your doctor. The MSD Manual explains that the disorder can go away without treatment and that treatment is offered when it persists, recurs or causes distress.

In a study of 21 people with depersonalization disorder who received individual cognitive behavioral therapy (CBT) (Hunter et al., 2005), therapy focused on reinterpreting the symptoms in a non-threatening way and reducing avoidance, safety behaviors and symptom monitoring. Symptoms, anxiety and depression improved significantly after treatment and six months later, and 29% no longer met criteria for the disorder at the end of therapy. It was a small study without a control group, and the researchers called for larger trials. When traumatic experiences are part of the picture, treatment that addresses them may be added.

If you need somewhere to put this strange feeling into words #

Depersonalization is hard to explain, so it is easy to struggle with it alone. CareOps Maeumi is an AI counseling app that runs sessions with approaches such as cognitive behavioral therapy (CBT) and acceptance and commitment therapy (ACT), helps you look at when the feeling comes and what goes through your mind at that moment, and remembers past sessions so the next one picks up where you left off. Get the app

This guide shares mental wellness information. If you are in immediate danger, contact emergency services where you are. Support and contact information.