Insights into the Mind

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If you have ever found yourself wondering what is EMDR therapy and why people talk about it in almost hushed, reverent tones — you are not alone. The first time someone described it to me, I remember thinking it sounded a little… odd. Eye movements? To process trauma? It felt more like something from a late-night documentary than a serious, evidence-based treatment. But the more I read, and the more people I spoke to who had actually tried it, the more I understood why EMDR has become one of the most talked-about trauma therapies of the last few decades. The evidence behind it is genuinely solid, and the experiences people describe are unlike almost anything else in the therapy world.

So, What Is EMDR Therapy, Exactly?

EMDR stands for Eye Movement Desensitisation and Reprocessing. It was developed in the late 1980s by American psychologist Dr Francine Shapiro, who noticed — almost by accident — that moving her eyes back and forth while thinking about distressing thoughts seemed to reduce their emotional intensity. That observation became the seed of a full therapeutic model that is now recommended by the World Health Organisation, the NHS, and NICE (the National Institute for Health and Care Excellence) as an effective treatment for PTSD and trauma.

In a nutshell, EMDR uses bilateral stimulation — most commonly guided eye movements, though it can also involve tapping or sounds alternating between ears — while a person holds a traumatic memory in mind. The idea is that this process helps the brain reprocess the memory so it loses its emotional charge. Therapists often describe it as helping the brain do what it was trying to do naturally after a traumatic event, but got stuck doing.

I should be clear here: I am not a therapist or psychologist. I have a BSc in Psychology from the University of Leeds and a postgrad certificate in Mental Health Communication, and I am a certified Mental Health First Aider — but my perspective comes from research, lived experience, and the many conversations I have had over the years. For clinical advice, please do speak to a qualified professional.

How Does an EMDR Session Actually Work?

One of the things I find most fascinating about EMDR is how structured it is. It is not just sitting in a chair while a therapist waves a finger in front of your face. There are eight distinct phases, and a well-trained therapist will move through them carefully:

• History taking — understanding your background, what you have been through, and whether EMDR is appropriate for you.
• Preparation — building a sense of safety and teaching grounding techniques before any trauma work begins.
• Assessment — identifying the specific memory or image to work on, along with the negative belief it has left you holding about yourself.
• Desensitisation — this is where the bilateral stimulation happens, while you hold the target memory in mind.
• Installation — strengthening a positive belief to replace the negative one.
• Body scan, closure, and re-evaluation — checking in with how the body feels, safely closing each session, and reviewing progress over time.

Studies have found that EMDR can produce significant results in fewer sessions than traditional talk therapy for trauma — sometimes within eight to twelve sessions, though that varies considerably depending on the person and the complexity of what they have experienced. Research published in the Journal of EMDR Practice and Research consistently supports its effectiveness for PTSD, and a 2013 WHO guidelines report listed it alongside trauma-focused CBT as a first-line treatment.

Why Does It Work? The Brain Science (Simplified)

Here is where it gets genuinely interesting from a psychology perspective. The leading theory is that EMDR works in a similar way to what happens during REM sleep — the stage of sleep where your eyes move rapidly and your brain consolidates and processes the day’s experiences. When something traumatic happens, the brain can fail to process the memory properly. Instead of being filed away like a normal memory, it stays “stuck” — vivid, emotionally raw, and easily triggered.

The bilateral stimulation in EMDR is thought to activate a similar processing mechanism to REM sleep, allowing the stuck memory to finally be integrated. The emotional intensity fades. The memory does not disappear — but it stops feeling like it is happening right now. Research suggests this may also involve reduced activation in the amygdala, the brain’s alarm system, which is chronically overactive in people living with PTSD and trauma-related anxiety.

Something I have noticed in reading about this is how it reframes trauma not as a character flaw or weakness, but as an incomplete neurological process. There is something quietly powerful about that idea. If you have ever blamed yourself for not being able to “just get over” something, the neuroscience of trauma processing might be worth exploring. If you want to go deeper on the self-directed side of things, The EMDR Workbook for Trauma and PTSD is a highly regarded resource that walks you through skills for managing triggers and working with traumatic memories — it is not a replacement for therapy, but as a companion guide it is genuinely useful.

Is EMDR Right for You? What to Consider

EMDR is most widely used for PTSD and single-incident trauma — a car accident, an assault, a medical emergency. But therapists increasingly use it for complex trauma, anxiety, phobias, grief, and even chronic pain. It is not suitable for everyone, and a good therapist will assess carefully before beginning. People in acute mental health crises, those with certain dissociative conditions, or those who do not yet have sufficient emotional stability may need preparatory work first.

From my own experience navigating anxiety — I had severe panic attacks at 23 that went undiagnosed for nearly two years — I know how easy it is to feel like you have tried everything and nothing quite reaches the root of things. I did not do EMDR personally, but I have spoken to people who describe it as the first thing that felt like it actually shifted something deep, not just managed the surface symptoms.

If you are curious and want to read and prepare before seeking a therapist, there are a few books I would genuinely recommend. The EMDR Self-Therapy Workbook covers bilateral stimulation techniques you can explore at home, while the Self-Guided EMDR Therapy and Workbook addresses anxiety, anger, depression, and emotional trauma in an accessible format. Please treat these as supportive tools alongside professional care, not replacements for it.

If EMDR is not available to you right now — perhaps due to cost, waiting lists, or location — other evidence-based options are worth exploring in the meantime. Trauma-focused CBT is another NICE-recommended approach, and workbooks like Cognitive Behavioural Therapy Workbook For Dummies, Retrain Your Brain: Cognitive Behavioral Therapy in 7 Weeks, or the Cognitive Behavioral Therapy (CBT) Workbook can provide real structure for working through anxiety and low mood. Mindfulness-based approaches are also worth having in your toolkit — the Mindfulness-Based Stress Reduction Workbook and Mindfulness-Based Stress Reduction: The MBSR Program are both well-respected resources for building that kind of grounded resilience.

A Final Thought on What Is EMDR Therapy — and Why It Matters

If you have been carrying something heavy for a long time and standard talking therapy has not quite been able to reach it, EMDR is absolutely worth looking into. It is not magic, and it is not easy — processing trauma rarely is. But it is backed by real science, recommended by major health organisations, and described by many who have been through it as genuinely life-changing.

The best place to start is with a qualified EMDR therapist. In the UK, you can search the EMDR Association UK’s directory for accredited practitioners. If you are elsewhere in the world, the EMDR International Association (EMDRIA) has a therapist finder too.

You deserve support that actually works for you. Whether that is EMDR, CBT, mindfulness, or a combination of things — the most important step is the one towards getting help in the first place. I remember how long it took me to take that step, and I wish I had taken it sooner. If you are at that point of wondering whether something could help — it probably can. Be gentle with yourself as you figure out what that something is.

Take care of yourself,
Lucy x