The Nervous System · Healing & Integration · Body-Based

Somatic Practices

Somatic practices work through bodily sensation, movement and breath rather than through analysis alone. Their evidence varies widely: EMDR is recommended in major PTSD guidelines, while Somatic Experiencing, TRE and sensorimotor approaches have promising but limited research. This page says which is which.

Why the Body Must Be Included

Somatic — from the Greek soma, body — refers to any approach that works with the body as the primary site of change rather than the mind. The somatic field rests on the view that trauma, chronic stress and developmental wounding are expressed not only in narrative memory but in the body’s muscular patterns, autonomic set-points and habitual postures. That view has partial scientific support (for example, altered stress physiology and conditioned fear responses in PTSD); the idea that the body literally “stores” memories is more contested. What is clear is that bodily responses often do not follow verbal instruction.

When you tell your body to relax, it often does not. When you understand intellectually that a situation is safe, the amygdala's threat response may continue regardless. When you decide to stop feeling afraid, the physiological fear response proceeds independently of your decision. This is not weakness or failure — it is the correct functioning of a system that evolved to prioritise survival over comfort, and to trust physical signals over conceptual reassurance.

Somatic practices work with this reality rather than against it. Instead of trying to change the body's responses through thought, they create conditions in which the body can change its own responses — by completing interrupted cycles, by titrating the activation level back within the window of tolerance, by developing new physical patterns that provide different input to the nervous system. The change happens in the body first, and the thoughts and feelings reorganise around the changed body.

You can't think your way out of a problem that lives below the level of thought. The healing has to happen in the same place the wound lives — in the body.
— attributed to Peter Levine; paraphrase of his approach

Somatic Modalities

Somatic Experiencing (SE)
Peter Levine · Clinical · 1970s–Present
Developed by Peter Levine, Somatic Experiencing is a body-oriented approach to resolving trauma by facilitating what Levine calls the completion of interrupted survival responses (a theoretical model). The practitioner guides the client's attention to physical sensations (rather than memories or emotions) and works slowly and carefully within the window of tolerance — tracking the activation level, titrating it through the body's natural cycles of activation and settling, and supporting what the model calls discharge of activation through trembling, breath changes and spontaneous movement. SE does not require the client to narrate the traumatic events in detail; it works with what is happening in the body right now, using the physical present as the site of healing.
Used for PTSD, developmental trauma and chronic pain with an emotional component. Evidence so far: a randomised trial in PTSD found symptom reductions compared with a waiting list (Brom et al., 2017), and a scoping review found promising but limited and mostly low-quality research (Kuhfuss et al., 2021). It is not yet among the first-line treatments recommended in major PTSD guidelines.
TRE — Tension & Trauma Releasing Exercises
David Berceli · Accessible · Self-Practice
Developed by David Berceli during his work in conflict zones in Africa and the Middle East, TRE is a series of simple physical exercises that deliberately fatigue the large muscles of the legs and hips to trigger the body's natural tremoring mechanism. The resulting shaking — which resembles the spontaneous trembling animals produce after threat — is proposed by Berceli to be an innate mechanism for releasing stress; this is a theory, and there is no strong evidence for a distinct “trauma-discharging” tremor. Unlike most trauma approaches, TRE is largely self-directed: after learning the exercise sequence, most people can practice independently. The tremoring feels unfamiliar at first and often produces involuntary emotional responses (tears, laughter, sound) that are signs of release rather than worsening.
Used for stress reduction, muscle tension, PTSD symptoms and sleep. Research is limited to small pilot studies (for example Berceli et al., 2014). It can be learned in a workshop and practised at home. Not recommended during an acute psychiatric crisis without professional support; people with epilepsy, heart conditions, pregnancy, recent injury or surgery, or severe mental-health conditions should speak to a doctor first.
Yoga Nidra — Yogic Sleep
Vedic · Satyananda · Accessible · Self-Practice
Yoga Nidra (Sanskrit: yogic sleep) is a systematic guided practice of conscious deep relaxation — not sleep, but the state between waking and sleep in which the body is fully relaxed and the mind remains gently aware. Practiced lying still while following a guided sequence of body rotation (systematic attention through each part of the body), breath awareness, pairs of opposite sensations and visualisation, it is reported to be accompanied by EEG patterns between waking and sleep, though findings vary. Small studies suggest reductions in stress and improvements in sleep (Moszeik et al., 2022; Datta et al., 2017), and one small PET study found increased dopamine release in the ventral striatum during yoga nidra (Kjaer et al., 2002). Popular claims that it replaces several hours of sleep or “resets” the autonomic baseline are not supported by good evidence.
Used for relaxation, stress, sleep difficulties and recovery. A safe, accessible practice for most people — it requires no fitness, movement or experience — although as with any relaxation practice, a few people with trauma histories find lying still with closed eyes distressing, and it is fine to practise with eyes open or to stop.
Sensorimotor Psychotherapy
Pat Ogden · Clinical · Therapist-Facilitated
Developed by Pat Ogden, Sensorimotor Psychotherapy integrates body-based interventions with cognitive and emotional processing in a full therapeutic framework. It specifically addresses the physical defensive responses (bracing, freezing, collapsing) that become habitual in trauma — working to complete these arrested actions and develop new physical patterns of contact, boundary and movement. Unlike SE which is primarily sensation-tracking, Sensorimotor works more directly with gesture, movement and posture as expressions of psychological states and sites of change.
Used for complex, developmental and relational trauma. The evidence base is small (for example a pilot randomised trial of a group adaptation, Classen et al., 2021). Requires a trained Sensorimotor therapist. It is designed for people whose difficulties show up in posture, movement patterns and bodily self-presentation.
EMDR — Eye Movement Desensitisation & Reprocessing
Francine Shapiro · Clinical · Well-Evidenced
Developed by Francine Shapiro in 1987, EMDR uses bilateral sensory stimulation (most commonly horizontal eye movements following the therapist's finger, but also auditory tones or tactile taps) while the client holds specific traumatic memories in mind. Proposed explanations for how it works include taxing working memory while a distressing memory is held in mind, REM-like processing and orienting responses; the mechanism, and how much the eye movements add beyond exposure to the memory itself, is debated. As a treatment for PTSD, though, EMDR is recommended in major guidelines alongside trauma-focused cognitive behavioural therapies (WHO, 2013; VA/DoD, 2023).
Used for PTSD and specific traumatic memories. It is one of the recommended first-line psychological treatments for PTSD, together with prolonged exposure and cognitive processing therapy. Requires a trained EMDR therapist.
Trauma-Sensitive Yoga
David Emerson · TCTSY · Accessible
Developed at the Trauma Center in Boston by David Emerson, Trauma-Sensitive Yoga (or Trauma Center Trauma-Sensitive Yoga, TCTSY) adapts yoga practice specifically for people with trauma histories — removing the hierarchical teacher-student dynamic, offering choices rather than instructions, inviting interoceptive awareness (noticing internal physical sensations) and creating conditions of physical safety that conventional yoga classes do not always provide. A randomised trial in women with chronic, treatment-resistant PTSD found significant reductions in symptoms compared with a supportive-education control (van der Kolk et al., 2014); the evidence is limited to a few small trials so far.
Complex PTSD, developmental trauma, dissociation, body disconnection. Accessible to people who cannot tolerate standard yoga classes. Particularly important for those whose trauma occurred in contexts where body autonomy was violated.

What All Somatic Approaches Share

Titration — Go Slowly
The most important principle in somatic trauma work: less is more. Small amounts of activation, carefully tracked and fully settled before proceeding, produce more durable change than large amounts of activation that overwhelm the system. The nervous system integrates change incrementally — like a muscle, it strengthens through graduated challenge, not through being overwhelmed. The temptation to go deeper faster is almost always counterproductive.
Pendulation — Activation & Settling
In this clinical model, healing proceeds through rhythmic movement between activated and settled states — not through staying in activation until it passes. The practitioner supports the person to touch the activated material, experience the beginning of discharge, and then return to a settled, resourced state before touching the activated material again. This pendulation between activation and settling gradually expands the nervous system's capacity to tolerate and integrate increasing amounts of material.
Resourcing Before Processing
Before approaching difficult material, somatic approaches invest in developing the person's capacity to tolerate what they will encounter — building internal and external resources, developing somatic anchors (physical sensations of safety and stability), and strengthening the nervous system's regulatory capacity. A system that has adequate resources can approach difficult material without being overwhelmed; a system that approaches difficult material without resources will be retraumatised.
Working With Sensation, Not Story
Where talk therapy works primarily with narrative (what happened, what it means), somatic approaches work primarily with current physical sensation (what is happening in the body right now). The rationale is that bodily alarm responses often do not respond to reasoning alone. Narrative-based trauma therapies are nonetheless among the best-evidenced treatments, so the two approaches are best seen as complementary.
Completion — Finishing What Was Interrupted
In somatic models, trauma leaves an interrupted survival response in the nervous system, and healing involves letting the body finish the movement, breath, gesture or sound that was arrested at the moment of overwhelm. This is a theoretical framework rather than an experimentally established mechanism, and trauma-focused talking therapies such as prolonged exposure and cognitive processing therapy also have strong evidence.
The Window of Tolerance
Many somatic therapists work within the window of tolerance (a model introduced by Daniel Siegel) — the zone between hyperarousal (too much activation) and hypoarousal (too little, collapse) where the nervous system retains the capacity to process experience. Both outside the window and below it, integration is not available. Effective somatic work keeps the person within their window, expanding it gradually rather than trying to force rapid change by pushing through the edges.

Where to Start

If you are new to somatic work and want to begin independently: Yoga Nidra and TRE are the most accessible starting points — both can be practiced at home with minimal guidance. Yoga Nidra requires only the ability to lie still and follow audio guidance; numerous free recordings are available online. TRE can be learned from David Berceli's book and video resources, or in a single workshop. Both are gentle enough for independent practice and provide immediate experience of the body's self-regulatory capacity.

If you have significant trauma history: The best-evidenced treatments are trauma-focused therapies (prolonged exposure, cognitive processing therapy, EMDR); working with a trained therapist (SE practitioner, EMDR therapist or Sensorimotor therapist) is strongly recommended before approaching intensive self-directed somatic practices. The window of tolerance principle matters most for people whose windows were most severely narrowed by developmental or complex trauma — going too fast without adequate support can retraumatise rather than heal.

The simplest daily somatic practice: Five minutes of body scan attention — moving awareness slowly and neutrally through each part of the body, noticing what is there without trying to change it. Body-scan and similar practices may develop interoceptive awareness, the ability to sense internal physical states (Farb et al., 2015), which some studies find reduced in people with trauma histories. For some trauma survivors, however, focusing on the body can itself be distressing: go slowly, keep your eyes open if you like, and stop if it becomes overwhelming.

What to Hold Carefully

Somatic work is powerful and must be approached carefully. The same quality that makes somatic approaches effective — their ability to access material below the level of cognitive defence — makes them potentially destabilising without adequate container and titration. Intensive somatic practices pursued without appropriate support, or with a practitioner who pushes too fast, can produce flooding, acute dissociation and temporary worsening of symptoms. Slow and supported is genuinely better than fast and overwhelming.

Somatic work does not replace medical care. Where somatic practices intersect with diagnosable conditions — PTSD, anxiety disorders, chronic pain syndromes — they are most effective as part of an integrated approach that includes appropriate medical care where needed. They are not a substitute for medication when medication is genuinely indicated, and they are not a substitute for other forms of support including appropriate psychiatric care for serious conditions.

The body knows, but the body is not always right. Somatic traditions sometimes adopt a stance of uncritical trust in the body's responses — as if every physical sensation is reliable signal rather than noise. The body does hold important information that the mind tends to override; it is also capable of generating threat responses based on misattribution, conditioning and cultural learning that do not reflect actual danger. Discernment in somatic work — as in all work — means neither dismissing the body's signals nor accepting them uncritically.

References

Statements on this page were checked against the sources below. Where the evidence is limited, contested or preliminary, the text says so; esoteric and traditional interpretations are marked as such.

Evidence for specific approaches

Guidelines and concepts

Last reviewed: October 2026. Educational reference, not medical advice.

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