The Somatic Experiencing® method is a body-oriented approach to the healing of trauma and other stress disorders. It is the life’s work of Dr. Peter A. Levine, resulting from his multidisciplinary study of stress physiology, psychology, ethology, biology, neuroscience, indigenous healing practices, and medical biophysics, together with over 45 years of successful clinical application. The SE™ approach releases traumatic shock, which is key to transforming PTSD and the wounds of emotional and early developmental attachment trauma.

The Somatic Experiencing Approach offers a framework to assess where a person is “stuck” in the fight, flight, or freeze responses and provides clinical tools to resolve these fixated physiological states. It provides effective skills appropriate to a variety of healing professions, including mental health, medicine, physical and occupational therapies, bodywork, addiction treatment, first response, education, and others.

The Science: Trauma may begin as acute stress from a perceived life threat or as the end product of cumulative stress. Both types of stress can seriously impair a person’s ability to function with resilience and ease. Trauma may result from a wide variety of stressors such as accidents, invasive medical procedures, sexual or physical assault, emotional abuse, neglect, war, natural disasters, loss, birth trauma, or the corrosive stressors of ongoing fear and conflict.

How It Works: The Somatic Experiencing approach facilitates the completion of self-protective motor responses and the release of thwarted survival energy bound in the body, thus addressing the root cause of trauma symptoms. This is approached by gently guiding clients to develop increasing tolerance for difficult bodily sensations and suppressed emotions.


Q. How prevalent is trauma?

A: According to the World Health Organization (WHO), trauma and loss are common in people’s lives. In a WHO study of 21 countries, more than 10% of respondents reported witnessing violence (21.8%) or experiencing interpersonal violence (18.8%), accidents (17.7%), exposure to war (16.2%), or trauma to a loved one (12.5%). An estimated 3.6% of the world’s population has suffered from post-traumatic stress disorder (PTSD) in the previous year.* In the United States, 61% of men and 51% of women report exposure to at least one lifetime traumatic event, and 90% of clients in public behavioral health care settings have experienced trauma. If trauma goes unaddressed, people with mental illnesses and addictions will have poor physical health outcomes and ignoring trauma can hinder recovery.**

A significant number of children in America are exposed to traumatic life events. According to the American Psychological Association (APA):

– Estimated rates of witnessing community violence range from 39% to 85%—and estimated rates of victimization go up to 66%.

– Rates of youths’ exposure to sexual abuse, another common trauma, are estimated to be 25 to 43%.

– Rates of youths’ exposure to disasters are lower than for other traumatic events, but when disasters strike, large proportions of young people are affected, with rates varying by region and type of disaster. Children and adolescents have likely comprised a substantial proportion of the nearly 2.5 billion people affected worldwide by disasters in the past decade.***

*WHO releases guidance on mental health care after trauma, who.int, 08.06.2013, **Substance Abuse and Mental Health Services Administration, SAMHSA-HRSA Center for Integrated Health Solutions, ***Children and Trauma, apa.org

Q. On what science is Somatic Experiencing® based?

Animals are constantly under threat of death yet show no symptoms of trauma. From his years studying animal behavior (as well as stress physiology, psychology, neuroscience, and medical biophysics), Dr. Peter Levine discovered that trauma has to do with the third survival response to perceived life threat, which is freeze. When fight and flight are not options, we freeze and immobilize, like “playing dead.” This makes us less of a target. However, this reaction is time-sensitive —in other words, if freeze is employed instead of fight or flight, the massive energy is stored in the body until the threat has passed and is then discharged through shaking and trembling. If the immobility phase doesn’t get completed, then that charge stays trapped, and, the body continues to perceive itself as still under threat. The Somatic Experiencing® method works to release this stored energy and turn off this threat alarm that causes severe dysregulation and dissociation. SE™ helps people understand this body response to trauma and work through a “body first” approach to healing. For a video that illustrates animal behavior and its relationship to SE, please see “Nature’s Lessons in Healing Trauma: An Introduction to Somatic Experiencing®” available on our website at www.traumahealing.org/resources/.  

Q. Somatic Experiencing® is considered “evidence-supported” not “evidence-based”. What's the difference?

An evidence-based approach to medicine, education, and other disciplines is based on a robust body of rigorous scientific studies and emphasizes the practical application of the findings of the best available current scientific research. Examples of evidence-based treatment for mental health include cognitive behavioral therapy, psychotherapy, functional family therapy, assertive community treatment, and FDA-approved medicines (ref: SAMHSA Evidence-Based Practices Resource Center accessed on May 12, 2020 @ https://www.samhsa.gov/ebp-resource-center). Applying evidence-based principles in mental health treatment ensures that providers use the best evidence as a starting framework, while simultaneously affording them flexibility to individualize treatment. Mental health professionals can assess research data and decide if and how to incorporate it into practice. However, the conditions and characteristics of treatment outcome research can vary significantly vs. what professionals experience in their “real world” clinical practices.*

The gold standard for an evidence-based practice is to have a body of research that contains a series of randomized controlled clinical trials (RCTs). This type of study assigns treatment and compares it to non-treatment in a way that minimizes bias that might come from differences in the people studied. Generally speaking (and with many caveats), when a practice or treatment has been investigated in a variety of populations or under different conditions and is found to be effective, it can be considered to be “evidence-based.” Alternatively, an “evidence-supported” practice has a more limited body of research and typically is in the process of building “evidence.” So, for example, there have been only a few RCTs on SE™[1],[2] and a handful of observational studies[3]. The results of these studies have found SE™ to be effective for specific populations with specific trauma symptoms but the full body of evidence is limited so it has not yet become an official “evidence-based practice.”

*Evidence-Based Psychotherapy: Advantages and Challenges, Sarah Cook, Ann Schwartz, Nadine Kaslow, Neurotherapeutics, July 2017, ncbi.nlm.nih.gov

[1] Brom D., Stokar Y., Lawi C., Nuriel-Porat V., Ziv Y., Lerner K. & Ross, G,(2017). Somatic experiencing for posttraumatic stress disorder: A randomized controlled outcome Study. J Trauma Stress, Jun; 30(3):304-312

[2] Elmose Andersen T., Lahav Y, Ellegaard  H., & Manniche C. (2017) A randomized controlled trial of brief Somatic Experiencing for chronic low back pain and comorbid post-traumatic stress disorder symptoms, European Journal of Psychotraumatology, 8:1, 

[3] See for example, the Somatic Experiencing ® website: https://traumahealing.org/resources/

Q. What research has been done to date on Somatic Experiencing®?

Clinical research on SE™ is in its early stages, despite having been practiced successfully by individual therapists trained in SE™ for more than four decades. Some of the research to-date, including the use of SE™ for treating war veterans and others with post-traumatic stress disorder (PTSD), is published on our website at: www.traumahealing.org/resources. If you’re interested in discussing or funding SE research, please contact us at research@traumahealing.org or 1-303-652-4035.

Q. How is Somatic Experiencing® different from or similar to traditional psychotherapy?

The practice of SE™ is an additional “tool” in the skill set of trained psychotherapists, social workers, medical professionals, body workers, and others. SE™ can be successfully integrated and added to a therapeutic practice in the same way that psychotherapists can use cognitive behavioral therapy, interpersonal psychotherapy, Jungian therapy, animal-assisted therapy, or art, music, drama and movement therapy. Somatic Experiencing® should be provided by a Somatic Experiencing Practitioner (SEP®) with extensive training in its principles and application. To find an SEP, please visit our SE Trauma Institute Provider Directory at https://directory.traumahealing.org/.

Q. Can Somatic Experiencing® be practiced in groups?

Yes. Practitioners of SE™ find that when internal cues and interpersonal interactions are viewed through the lens of survival physiology, what previously looked like symptoms can be seen as management strategies. These patterns can be welcomed as the organism’s best attempt to protect itself. SE-informed group psychotherapy broadens and deepens the efficacy of either SE™ with an individual client or group psychotherapy informed by the principles and practices of SE. The group setting can be an environment in which members discover or recover a capacity for optimal self-regulation.*

*Group Psychotherapy Informed by the Principles of Somatic Experiencing: Moving Beyond Trauma to Embodied Relationship, Taylor & Francis, International Journal of Group Psychotherapy, 01.27.2017

For additional information or questions, please contact the SE™ Trauma Institute at research@traumahealing.org.


If you are a member of the media, we invite you to review the specific topics below and contact us for further information or resources. Please contact Marv Tuttle at communications@traumahealing.org.


According to the National Center for PTSD, a unit of the U.S. Department of Veterans Affairs, between 11 percent and 20 percent of soldiers who served or are serving in Operation Iraqi Freedom and Operation Enduring Freedom have post-traumatic stress syndrome (PTSD) in a given year. Even more disturbing is the fact that 15 percent of veterans of the Vietnam War were diagnosed with PTSD 20 years after the war, and approximately 30 percent of all Vietnam veterans have had PTSD in their lifetime. In addition to combat, another cause of PTSD in the military can be military sexual trauma , —23 percent of women have reported sexual assault when in the military.

Although the standard treatment for PTSD has typically involved psychotherapeutic intervention, in recent years the search has been on for new approaches to help veterans heal from PTSD trauma —including body-centered or somatic approaches such as Somatic Experiencing ®. These approaches share the assumption that trauma is first and foremost an experience that affects and imprints the body and that it’s essential to engage the body in the healing process.*

* J. Scott Janssen, MSW, LCSW, Social Work Today, September/October 2015 Somatic Experiencing: A Body-Centered Approach to Healing Veterans’ PTSD


Animals are constantly under threat of death, yet show no symptoms of trauma. From his years studying animal behavior, Dr. Peter Levine discovered that trauma has to do with the third survival response to perceived life threat, which is freeze. When fight and flight are not options, we freeze and immobilize, like “playing dead.” This makes us less of a target. However, this reaction is time-sensitive —in other words, it needs to run its course, and the massive energy that was prepared for fight or flight gets discharged through shakes and trembling. If the immobility phase doesn’t complete, then that charge stays trapped, and, from the body’s perspective, it is still under threat. The Somatic Experiencing method works to release this stored energy and turn off this threat alarm that causes severe dysregulation and dissociation.

SE helps people understand this body response to trauma and work through a “body first” approach to healing with a trained SE Practitioner.


Community trauma affects social groups or neighborhoods long subjected to interpersonal violence, structural violence, and historical harms.

Research suggests that the causes of community trauma lie in the historic and ongoing root causes of social inequities, including poverty, racism, sexism, oppression and power dynamics, and the erasure of culture and communities.* For example, nearly half—42%—of Baltimore’s children experience three-plus traumatic events before they reach adulthood.*

The Elijah Cummings Healing City Act, enacted by the Baltimore City Council in January 2020, will seek to train the focus of Baltimore government and leadership on healing from the trauma, violence and racial inequity in the city.

The Act creates a multi-agency task force that requires formal training on trauma-informed care and makes trauma-responsive and trauma-informed delivery of services a priority across city government. The task force will address childhood trauma and requires training at every Baltimore city agency to provide an appropriate response to the unmet need of providing a lasting response to those who are dealing with trauma in their lives and communities.

Trauma-Informed Community Building and Engagement, The Urban Institute, April 2018; Mayor’s Office of Children & Family Success, bmorechildren.com/policy-advocacy


Rescue workers can be defined as any person who professionally or voluntarily engages in activities devoted to providing out-of-hospital acute medical care; transportation to definitive care; freeing persons or animals from danger to life or well-being in accidents, fires, bombings, floods, earthquakes, other disasters, and life-threatening conditions.

As a consequence of these activities, rescue workers have a high exposure to traumatic events. A traumatic event is defined by the Diagnostic and Statistical Manual of Mental Disorders (DSM) as experiencing, witnessing, or being confronted with at least one event that involves actual or threatened death or serious injury, or a threat to the physical integrity of self or others.

The occupational routine of rescue workers includes the provision of emergency medical assistance to severely injured people, searching for and recovering victims from natural disasters or other traumatic events, all of which qualify as traumatic according to DSM criteria.

Because the risk of developing PTSD increases with the number of traumatic events experienced, rescuers are a high-risk group for PTSD. Besides occupation, the nature, the severity, and the repetition of the exposure to traumatic events may influence the prevalence of PTSD. Research studies indicate promising results on the use of Somatic Experiencing to resolve the physiological component of trauma in disaster survivors and responders.*

Please see the Resources tab on our website www.traumahealing.org/resources for more helpful information on Somatic Experiencing .

*Rescuers at risk: a systematic review and meta-regression analysis of the worldwide current prevalence and correlates of PTSD in rescue workers, ncbi.nlm.nih.gov; The Role of Somatic Psychotherapy in Treating First Responders: Providers’ Perspectives, Master of Social Work Clinical Research Papers, Sophia.stkate.edu.


The SE Trauma Institute is dedicated to comprehensive public awareness of Somatic Experiencing and how it can help heal trauma. We also want to help those in related professions recognize and understand secondary trauma.

Secondary trauma is an umbrella term for the trauma that results from repeated empathetic engagement with traumatized populations. It is a very real and very serious issue. It is a natural consequence of working to help those who have been traumatized. Secondary trauma can have serious consequences on health, both mental and physical.* Secondary trauma is not a lack of willpower, resilience, or commitment. It is not just “normal” work-related stress. It is an occupational hazard that can affect professionals in various settings and occupations.

Our decades-long experience in helping people heal from trauma can help institutions and communities of professionals who may experience secondary trauma. We invite you to contact us for more on how we can develop a customized program on Somatic Experiencing and trauma resolution to your organization.

  • Medical Community: doctors, nurses, physical and occupational therapists, medical academics, hospital social workers
  • Workplace: human resources professionals, wellness program managers, volunteers
  • Victim Service Providers: professionals involved in services to people who have experienced sexual assault, child abuse/neglect, domestic violence, elder abuse, hate crimes, accidents, natural disasters
  • Legal and Justice Community: police, investigators, legal advocates, prisons
  • Journalists: editors, reporters, photojournalists
  • Religious Community: Clergy, peer-to-peer religious or spiritual counselors

*Secondary Trauma in the Workplace, Montana State University.


Support trauma resolution and resilience through culturally responsive professional training, research, education and outreach in diverse global communities.


Transforming lives through healing trauma.


  • Support: Foster and nurture hope and empowerment.
  • Compassion: Lead with empathy and understanding.
  • Excellence: Deliver quality professional education in a spirit of innovation, creativity and research.
  • Community: Cultivate trust and safety through acceptance, equity, inclusion, and unity.
  • Vitality: Inspire new possibilities and restore resilience through increased organizational capacity and self‐regulation.


  • 501(c)(3) nonprofit founded in 1994 and governed by a six-member Board of Directors
  • Based on the foundational work of Peter A. Levine, Ph.D.  (please read more in the History section)
  • Based in Boulder, Colorado with trained Somatic Experiencing Practitioners working around the world
  • Training offered includes: a three-year curriculum designed to lead to the Somatic Experiencing Practitioner Certificate, short courses on the basic principles of Somatic Experiencing, and assistant and provider programs
  • More than 120,000 professionals in over 30 countries on 6 continents have been trained in SE
  • Our organization includes more than 1,400 staff, faculty, coordinators, and training assistants.


  • Argentina
  • Australia
  • Austria
  • Belgium
  • Brazil
  • Canada
  • Chile
  • China
  • Croatia
  • Czech Republic
  • Denmark
  • Egypt
  • France
  • Germany
  • Great Britain
  • Greece
  • Hong Kong
  • Hungary
  • India
  • Ireland

  • Israel
  • Italy
  • Japan
  • Mexico
  • Netherlands
  • Norway
  • Poland
  • Portugal
  • Romania
  • Scotland
  • Singapore
  • South Korea
  • Spain
  • Sweden
  • Switzerland
  • Taiwan
  • Turkey
  • Uruguay
  • United States


  • Marv Tuttle, Executive Director
  • Krysti Giese, Managing Director of Operations
  • Ana Paula Bastian, Director of Legal Affairs & International Relationships
  • Sonja Cole, Managing Director of Professional and Community Development
  • Amie Leigh, Director of Public Health Initiatives


In 1972, in his “tree house” in Berkeley, California, Dr. Peter Levine held the first class on his therapeutic concept of Somatic Experiencing. Since then, more than 120,000 professionals in the healing profession have taken SE professional training worldwide.

Trauma can be overcome —that’s why we’re focused on helping the helpers. At the Somatic Experiencing Institute, students no longer meet in a tree house. Around the world —six continents to be exact —professionals participate in our robust and comprehensive training in person and on-line.

Somatic Experiencing Training, Somatic Experiencing Trauma Institute

Training is delivered through a combination of lectures, live demonstrations, guided practice sessions, audio-visual case studies, and suggested reading. Students enroll in one of our many offerings: a three-year curriculum designed to lead to the Somatic Experiencing Practitioner certificate (SEP), short courses on the basic principles of Somatic Experiencing, and assistant and provider programs. More than 12,000 mental health, medical, bodywork and other professionals globally have been trained in SE.

Rather than focus on the re-telling of traumatic events or personal history, SE aims to identify what is interfering with people’s internal threat-recovery process and helps clients develop tools for restoring their innate capacity to rebound from overwhelming experiences. By facilitating the completion of self-protective responses and releasing survival energy that has become bound in the body, SE addresses the root cause of trauma symptoms.

We envision a world of transforming lives through healing trauma.

Helping the helpers.

Trauma is a fact of life. It does not, however, have to be a life sentence.

That is a guiding principle of the Somatic Experiencing Trauma Institute (SETI) . We exist to bring education and training to those who can help heal people with trauma, hope to those living with trauma, and awareness of trauma to related professional communities and the general public.

Somatic Experiencing is a psychobiological method for healing trauma and other stress disorders. It is based on a multidisciplinary intersection of physiology, psychology, biology, neuroscience and medical biophysics and has been clinically applied for more than four decades.

The SE  approach offers education and clinical tools to those in the “helping” professions —therapists, medical professionals, addiction professionals, social workers, first responders, educators, counselors in religious settings.

We know that trauma can result from a wide variety of stressors: war, natural disasters, emotional abuse, loss, domestic conflict, accidents. We also know that it can be overcome —with the right knowledge, tools, and support system. That’s why we’re dedicated to helping the helpers.

Because when we do that successfully, we can achieve our vision of transforming lives through healing trauma. 

“ . . . [T]he journey toward a vital, spontaneous life means more than alleviating symptoms – it means transformation. . . Transformation is the process of changing something in relation to its polar opposite. . . This is a profound metamorphosis.”  —Dr. Peter Levine, Somatic Experiencing pioneer

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