APA Citation
Levine, P. (2010). In an Unspoken Voice: How the Body Releases Trauma and Restores Goodness. North Atlantic Books.
Summary
In this seminal work, Peter Levine presents his culminating understanding of how trauma becomes trapped in the body and how it can be released through somatic awareness and physical discharge. Drawing on forty years of research, clinical practice, and the development of Somatic Experiencing therapy, Levine explains why traditional talk therapy often fails trauma survivors: trauma isn't primarily stored in narrative memory but in the body's implicit systems—the muscles, viscera, and nervous system. The book details how incomplete survival responses (the fight-or-flight energy that never got discharged) create chronic symptoms, and how guiding the body to complete these responses allows healing without retraumatisation. Levine's approach revolutionised trauma treatment by demonstrating that the body has innate healing capacities that can be accessed without endless recounting of traumatic events.
Why This Matters for Survivors
For survivors of narcissistic abuse, Levine's work validates what you may have felt intuitively: that your body holds the trauma in ways talking about it doesn't seem to reach. The chronic tension, the startle responses, the rage you can't seem to discharge through understanding alone—these have a biological basis and a biological solution.
What This Research Found
Trauma is a body phenomenon. Peter Levine’s fundamental insight is that trauma isn’t primarily a psychological event—it’s a biological one. When we face life-threatening situations, our bodies mobilise massive energy for survival: muscles tense for fight or flight, stress hormones flood the system, heart rate and breathing accelerate. In animals, this energy gets discharged naturally through shaking, trembling, and completing the defensive response. In humans, social conditioning often prevents this discharge, leaving the survival energy trapped in the nervous system and tissues.
The problem of incomplete responses. Levine explains that trauma symptoms result from survival responses that never completed. A child who couldn’t fight back against an abusive parent still has fight energy locked in their muscles. A person who couldn’t flee still has flight energy frozen in their legs. This incomplete energy creates the hallmark symptoms of trauma: hyperarousal (the body still mobilised for threat), hypoarousal (the body collapsed in defeat), chronic muscle tension, startle responses, and dissociation. The body is still trying to complete a response that was interrupted years or decades ago.
The body’s innate healing capacity. Rather than requiring endless analysis of traumatic events, Levine’s approach trusts the body’s natural tendency toward completion and healing. By helping trauma survivors develop interoception—awareness of internal body sensations—and by working with these sensations in small, manageable doses, Somatic Experiencing allows the body to gradually discharge trapped survival energy. This might manifest as spontaneous trembling, deep breaths, waves of warmth, or the urge to move in ways that complete interrupted defensive actions.
Why talk therapy often fails. Traditional psychotherapy engages the neocortex—the thinking, language-processing part of the brain. But trauma is encoded in older brain structures (brainstem, limbic system) and in the body itself. You can understand cognitively what happened, develop insight about its effects, and still have panic attacks because the body hasn’t discharged its survival response. Levine argues that effective trauma treatment must engage the body directly, not just the mind.
Why This Matters for Survivors
Your body holds what words can’t reach. If you’ve been in therapy, developed insight into your narcissistic abuse, can tell the story clearly—and still have chronic tension, startle responses, or seemingly irrational fear reactions—Levine’s work explains why. The trauma lives in your body, in implicit memory systems that language doesn’t access. Understanding this isn’t a failure of previous therapy; it’s recognising that a different approach is needed for what remains.
The rage trapped in your body is real. For years, fighting back against your abuser was dangerous or impossible. That fight response didn’t disappear; it’s still locked in your muscles, waiting for discharge. When rage erupts—seemingly disproportionate to current triggers—you’re not overreacting. You’re experiencing the accumulated energy of every time you had to suppress your natural defensive response. Levine’s approach offers ways to release this rage safely rather than either acting it out destructively or continuing to suppress it.
Your physical symptoms make sense. The chronic pain, digestive problems, autoimmune conditions, and mysterious ailments that often accompany narcissistic abuse aren’t ‘all in your head’—they’re in your body, precisely where trauma lives. The somatic symptoms you’ve been told are psychosomatic or stress-related are actually your body’s ongoing attempt to manage undischarged survival energy. Addressing the trauma somatically may resolve symptoms that medical approaches have failed to touch.
Healing can happen without endless retelling. Many survivors dread therapy because it means recounting traumatic experiences over and over. Levine’s approach is fundamentally different: rather than diving into traumatic memories, Somatic Experiencing works with body sensation in the present moment. The body can discharge trauma without the mind needing to relive every detail. This can feel safer and is less likely to retraumatise than approaches requiring detailed trauma narrative.
Clinical Implications
Body awareness as assessment. Levine’s framework suggests that clinicians should assess not just psychological symptoms but somatic ones: Where does the patient hold tension? What happens in their body when discussing difficult topics? Do they show signs of chronic hyperarousal (restlessness, rapid speech, inability to settle) or hypoarousal (collapse, dissociation, flatness)? These body-based observations provide crucial diagnostic information about how trauma is being held and what interventions might help.
Resourcing before processing. Somatic Experiencing emphasises building ‘resources’—body-based experiences of safety and competence—before approaching traumatic material. Clinicians might help patients notice parts of their body that feel neutral or settled, develop grounding practices, and build tolerance for sensation before working with trauma directly. This prevents the retraumatisation that can occur when patients are flooded with overwhelming experience.
Working with sensation, not story. Rather than asking ‘What happened?’ Levine-trained clinicians might ask ‘What do you notice in your body right now?’ The focus shifts from narrative to sensation—tightness, temperature, movement impulses, breathing patterns. By tracking and titrating these sensations, clinicians help patients discharge trauma gradually without overwhelming the system. This requires training in reading subtle body cues and tolerating non-verbal therapeutic work.
Pendulation and titration. Levine introduced key concepts for safe trauma work: titration (working with small amounts of activation rather than flooding) and pendulation (moving between activation and calm, between distressing sensation and resource states). Clinicians must learn to track activation levels and intervene before patients become overwhelmed. This creates a rhythm of approaching and retreating from traumatic material that the nervous system can tolerate.
Integration with other modalities. Somatic Experiencing is often most effective when integrated with other approaches. Cognitive work helps patients make meaning of their experience; somatic work helps discharge the body-held energy. Relational approaches provide the safety needed for the body to let go of defensive tension. Clinicians need not choose one modality exclusively but can draw on body-based interventions as part of comprehensive treatment.
Broader Implications
Reconceptualising Mental Health
Levine’s work challenges the mind-body split that underlies much of Western psychology. If trauma is fundamentally a body phenomenon, then ‘mental’ health is inseparable from physical health. This has implications for how we train clinicians (including body awareness in psychology programs), how we design treatment (integrating movement and somatic approaches), and how we understand conditions currently classified as purely psychological.
Trauma-Informed Movement Practices
Levine’s insights have influenced the development of trauma-sensitive yoga, movement therapies, and body-based healing practices. Understanding that the body holds trauma means that movement practices—when designed appropriately—can be therapeutic. This has implications for fitness professionals, yoga teachers, and anyone working with bodies who may inadvertently be working with trauma.
Understanding Chronic Pain and Illness
The connection Levine draws between undischarged trauma and physical symptoms offers new understanding of chronic conditions often dismissed as psychosomatic. Fibromyalgia, chronic fatigue, irritable bowel syndrome, and other conditions may have roots in nervous system dysregulation from unresolved trauma. This suggests treatment approaches that address trauma rather than only managing symptoms.
Workplace Wellness
If trauma lives in the body and many employees carry unresolved trauma, workplace wellness programs focused only on cognitive stress management may miss the mark. Body-based interventions—movement breaks, somatic awareness training, environments that support nervous system regulation—may be more effective for employee wellbeing than traditional approaches.
First Responder and Military Applications
People who regularly face traumatic situations—first responders, military personnel, healthcare workers—benefit from understanding how to discharge trauma physically rather than accumulating it. Levine’s work has informed programs teaching these populations to shake off stress, use body-based grounding, and prevent the build-up of undischarged survival energy that leads to PTSD.
Parenting and Education
Children naturally discharge stress through movement, shaking, and play. Adult insistence on ‘calming down’ or sitting still may inadvertently prevent healthy trauma discharge. Levine’s framework suggests that allowing children to move, express physically, and complete defensive responses may prevent trauma from becoming trapped. This has implications for parenting practices, classroom management, and how we understand ‘behavioural problems’ in children.
Limitations and Considerations
Evidence base is developing. While Somatic Experiencing has trained tens of thousands of practitioners and many report positive outcomes, randomised controlled trials are limited. The subtle, body-based nature of the work makes it difficult to measure with standard research methods. Clinicians should be aware that the evidence base, while promising, is less robust than for some cognitive approaches.
Requires specialised training. The skills required to track body sensation, titrate activation, and work safely with trauma aren’t taught in standard therapy training. Practitioners without proper training may inadvertently flood patients or miss crucial body cues. This limits availability; many trauma survivors don’t have access to Somatic Experiencing practitioners.
Not appropriate for everyone immediately. Some trauma survivors are highly dissociated and have difficulty accessing body sensation at all. For these individuals, preliminary work building basic body awareness may be necessary before somatic trauma processing is possible. The approach requires patients to tolerate being in their bodies, which for some is initially terrifying.
Integration, not replacement. Levine doesn’t claim somatic work replaces all other approaches. Complex trauma typically requires integration of body-based, cognitive, and relational modalities. Somatic Experiencing addresses a specific dimension of trauma—body-held energy—but survivors may also need help with meaning-making, relationship patterns, and practical life skills.
How This Research Is Used in the Book
This research is cited in Chapter 21: Breaking the Spell to explain why survivors need to discharge rage physically during recovery:
“Rage held in the body must be discharged physically, not just processed cognitively, for healing to occur.”
The citation appears in a discussion of the anger that emerges during recovery from narcissistic abuse—the volcanic rage that surfaces once survivors are finally safe enough to feel it. The book notes that this anger has been suppressed for years, creating body-held tension that needs safe containers for release: therapy, support groups, somatic practices. Understanding that anger isn’t just an emotion to be managed but survival energy to be discharged changes how survivors approach their recovery.
Historical Context
Levine’s 2010 book represents the culmination of four decades of work developing Somatic Experiencing. His journey began in the 1970s, when he observed that animals in the wild rarely show long-term trauma symptoms despite frequent life-threatening encounters. They discharge survival energy through shaking, trembling, and movement, then return to normal functioning. Humans, socialized to suppress these responses, accumulate undischarged energy that becomes chronic symptoms.
His first book for general audiences, Waking the Tiger (1997), introduced these ideas widely. In an Unspoken Voice deepened the theoretical framework, incorporating Stephen Porges’s polyvagal theory and advancing neuroscience on stress and the body. The book appeared as mainstream psychology was increasingly recognising the importance of body-based approaches, helping to legitimise somatic trauma therapy within the broader field.
Levine’s work contributed to a paradigm shift in trauma treatment—from approaches focused primarily on memory and narrative to approaches integrating body, nervous system, and somatic experience. This shift has influenced treatment protocols, training programs, and the public understanding of trauma.
Further Reading
- Levine, P.A. (1997). Waking the Tiger: Healing Trauma. North Atlantic Books.
- Levine, P.A. & Frederick, A. (1997). Healing Trauma: A Pioneering Program for Restoring the Wisdom of Your Body. Sounds True.
- Payne, P., Levine, P.A., & Crane-Godreau, M.A. (2015). Somatic experiencing: Using interoception and proprioception as core elements of trauma therapy. Frontiers in Psychology.
- van der Kolk, B.A. (2014). The Body Keeps the Score: Brain, Mind, and Body in the Healing of Trauma. Viking.
- Porges, S.W. (2011). The Polyvagal Theory: Neurophysiological Foundations of Emotions, Attachment, Communication, and Self-regulation. W.W. Norton.
About the Author
Peter A. Levine, Ph.D. is the developer of Somatic Experiencing, a naturalistic approach to healing trauma that has trained over 50,000 practitioners worldwide. He holds doctorates in both medical biophysics and psychology.
Levine's career spans over fifty years of studying stress and trauma. His initial observations came from working with animals (who naturally discharge traumatic stress through physical shaking and trembling) and from treating chronic pain and psychosomatic conditions. His 1997 book Waking the Tiger first introduced Somatic Experiencing to a broad audience.
He has served as a stress consultant for NASA during the space shuttle development, worked with trauma survivors worldwide including after major disasters, and received the Lifetime Achievement Award from the United States Association for Body Psychotherapy. His work has been instrumental in shifting trauma treatment toward body-based approaches.
Historical Context
Published in 2010, this book represents Levine's most comprehensive statement of his life's work. It appeared at a time when neuroscience was beginning to validate what somatic therapists had long observed: that trauma fundamentally alters the body's physiology, not just psychology. The book built on Levine's earlier popular work (<em>Waking the Tiger</em>, 1997) while incorporating newer research on the polyvagal system, neuroplasticity, and the neurobiology of stress. It has become a foundational text for body-oriented trauma therapists and has significantly influenced the integration of somatic approaches into mainstream trauma treatment.
Frequently Asked Questions
Levine explains that trauma isn't primarily stored in the parts of the brain that process language and narrative. It's stored in older, non-verbal systems—the brainstem, limbic system, and body itself. When you talk about trauma, you're engaging your cognitive brain, but the survival energy remains trapped in your body. This is why you can understand intellectually what happened but still have panic attacks, chronic tension, or explosive reactions. Healing requires engaging the body directly, not just the thinking mind.
When faced with threat, your body mobilises enormous energy for fight or flight. If that response gets interrupted—you couldn't fight back against an abuser, couldn't flee because you were a child—the energy doesn't simply dissipate. It gets 'frozen' in your nervous system and tissues. This manifests as chronic muscle tension, digestive problems, a nervous system stuck on high alert, or conversely, numbness and dissociation. Your body is still trying to complete a survival response that was interrupted years ago.
Somatic Experiencing (SE) helps you become aware of body sensations related to trauma—the tightness in your chest, the urge to run in your legs, the clenching in your jaw. Rather than diving into traumatic memories (which can retraumatise), SE works with these sensations in small, manageable doses, allowing the body to gradually discharge the trapped survival energy. You might find yourself naturally trembling, taking deep breaths, or feeling warmth spread through areas that were constricted. The body knows how to heal when given the right conditions.
The rage is completely normal—and necessary. For years, your fight response was suppressed because fighting back against a narcissist was dangerous or futile. That energy didn't disappear; it's still in your body, waiting to be discharged. Levine's work shows that this rage needs physical expression—not acting out violently, but allowing your body to complete the interrupted defensive response through movement, sound, or other somatic discharge. Trying to think your way through it bypasses the very system where the rage lives.
Your nervous system doesn't automatically update when circumstances change. After prolonged abuse, your body learned that hypervigilance was necessary for survival. Even in safety, those neural pathways remain active. Levine describes this as incomplete defensive responses—your body is still mobilised for a threat that no longer exists. Healing requires helping your nervous system recognise that the danger has passed, which happens through body-based work, not through cognitive reassurance alone.
Levine recommends working with a trained Somatic Experiencing practitioner, especially initially, because trauma can be overwhelming and having skilled support helps prevent retraumatisation. That said, his book includes many self-guided exercises for developing body awareness and beginning to work with sensation. Practices like noticing where you feel settled in your body, tracking sensations without judgment, and allowing natural movements to emerge can be done safely alone. For deep trauma work, professional guidance is advisable.
EMDR also works with the body's processing systems but typically involves more direct engagement with traumatic memories. Exposure therapy deliberately revisits traumatic material to reduce fear responses. Somatic Experiencing works more gradually and indirectly, focusing on body sensation rather than memory or narrative. Levine believes this gentler approach is less likely to retraumatise and more aligned with the body's natural healing processes. Different approaches work for different people; many clinicians now integrate elements of all these modalities.
Somatic approaches require practitioners with specialised training that many therapists don't have. The work is subtle and can be difficult to measure with traditional research methods, so the evidence base, while growing, is less robust than for cognitive approaches. Some trauma survivors have difficulty accessing body sensation due to dissociation, requiring preliminary work before somatic approaches become useful. And somatic work typically needs to be integrated with other approaches—it's not a complete treatment on its own for complex presentations.