Tension & Trauma Releasing Exercises (TRE)
There is a moment, in the minutes after something frightening, when the body wants to shake. Children do it without thinking. Animals do it without thinking. Somewhere along the way, we learned to stop.
That suppression has a cost. The charge of an unresolved stress response does not disappear when we override the shaking - it stays, lodged in the deep musculature, held in patterns of chronic bracing that can persist for months or years without a name.
TRE, developed by Dr David Berceli after years of working with traumatised communities across the Middle East and Africa, is built on that observation. He noticed that children who trembled and shook freely after acute stress bounced back quickly. Adults who suppressed the same shaking frequently did not. The tremor reflex is not a symptom of distress. It is the body's natural mechanism for resolving it. TRE uses a sequence of simple exercises to deliberately reactivate that reflex - to fatigue the psoas and surrounding muscle chains until voluntary control temporarily releases and the body's own discharge mechanism takes over. No narrative required. No memory to revisit. The tremors do the work at a level below conscious thought.
People come to TRE from many different starting points. Some arrive carrying the accumulated weight of years of stress, chronic tension, or unresolved experience, and are looking for a way to begin discharging it. Others come out of curiosity - already exploring the somatic landscape and drawn to TRE by someone else's account of something they found difficult to describe. Both entry points are equally valid, and the practice meets each of them where they are.
Core Mechanism
What chronic tension actually is
Most people who carry significant stress in the body cannot precisely locate it. They know it is there - in the held quality of the breath, the jaw that grips slightly harder than it needs to, the feeling of waking up already tired. What they are less likely to know is that this chronic bracing has a specific physiological address.
When the brain perceives threat, the sympathetic nervous system prepares the body for action. Central to this response is the iliopsoas - a deep core muscle running from the lumbar spine to the femur - which contracts reflexively, drawing the body toward the protective curl of the foetal position and locking the survival charge inside the deep musculature. In most other mammals, this charge discharges automatically once the threat passes: the body shakes, the nervous system resets, the animal returns to baseline. Humans have largely suppressed this reflex, conditioned by social norms that equate visible shaking with weakness or loss of control. The result is that the residual charge of repeated stress responses goes un-discharged - accumulating, over time, as chronic muscular tension and an autonomic nervous system that never fully returns to rest.
TRE intervenes at this physical level. The exercises are specifically designed to fatigue the psoas and the surrounding muscle chains of the lower body to the point where voluntary muscular control temporarily releases and the body's own tremor reflex takes over. The tremors travel upward through the body from the legs, through the pelvis, and along the spine, progressively unwinding the bracing patterns held in the deep musculature.
What practitioners and participants consistently report is a reduction in anxiety, an improvement in sleep quality, and a broad sense of nervous system relief - a settling that can be felt in the body before it is understood in the head. The tremor mechanism itself is still being mapped by researchers, which is part of what makes TRE a genuinely interesting area of ongoing inquiry rather than a closed question.
TRE sits within a broader intellectual ecosystem that includes Peter Levine's Somatic Experiencing model - which holds that unresolved survival energy becomes physically stored in the body - and Bessel van der Kolk's clinical work on how the body encodes and holds traumatic experience. These frameworks are not without academic debate, but together they represent the most coherent available map of why body-based practices like TRE produce the results that practitioners and participants consistently report.
The Protocol
The official sequence
TRE was designed to be teachable at scale - to large groups, in community halls, in field conditions. The official seven-exercise sequence reflects that: a methodical, bottom-up protocol that reliably fatigues the lower body musculature enough to trigger the tremor reflex in most people, without requiring a practitioner present.
The exercises move progressively up the kinetic chain - ankle rocks, knee bends, rotational hip stretches, a sustained wall sit that pre-fatigues the quadriceps and psoas - before arriving at the floor position most associated with TRE: lying on the back, soles of the feet together, knees falling outward. From here, with the psoas gently exposed and the muscles already fatigued, tremors typically begin within a few minutes. They may start as a fine quiver in the thighs and develop into rolling waves through the pelvis and spine, or remain subtle throughout. Both are valid. The standard protocol runs approximately 25-30 minutes and is designed to be safe for solo use once properly learned with a certified provider.
What a session with a practitioner actually looks like
The protocol above is the skeleton. What happens with an experienced practitioner - particularly one who integrates bodywork and somatic attunement alongside the exercises - is a different and considerably richer experience.
A typical practitioner-led session of 60-90 minutes is less a structured workout and more an unfolding. It usually begins not with movement at all, but with arrival - a period of stillness, breath awareness, or gentle body scan to help you land in the present moment rather than carry the residue of the day into the session. Some practitioners invite a soft intention - not a goal to achieve, but a quality of attention to bring. Others work more intuitively, reading your state and responding to what they find.
The physical exercises, when they come, may be abbreviated significantly. One of the clearest signs of growing experience with TRE is how little the body needs in order to find its way in. Early in practice, the full sequence may be necessary to coax the tremors awake. Later, a few minutes of gentle hip work - sometimes simply lying down and turning attention inward - can be sufficient. The body, once it has learned to trust the process, becomes increasingly willing.
The tremoring phase itself - which might run 20-30 minutes in a longer session - is not something the practitioner directs so much as holds. Their role is to maintain a steady, regulated presence - what somatic practitioners call co-regulation - so that your nervous system has something safe to orient toward if the process moves into unfamiliar territory. They may offer a light touch, a quiet word of guidance, or simply remain present. The quality of that containment matters enormously. It is often the thing that makes the difference between a session that reaches something real and one that stays at the surface.
Reintegration - the closing third of a practitioner session - is as important as the tremoring itself. This is the work of coming back down: slow breathing, a body scan, time to register what has shifted before re-entering ordinary life. The nervous system needs this phase to complete the cycle - to register that the release has happened and that it is now safe to settle. Treating this as optional or rushing through it undermines much of what preceded it.
On trusting the body
One thing an experienced practitioner returns to - something a written protocol can’t fully convey - is that there’s no “right” amount to feel or move. What matters most is your sense of safety as you go.
As tremors arise, keep checking in: How safe do I feel right now? The body and nervous system hold their own wisdom, and the tremors are part of that. But trusting the body doesn’t mean pushing past your limits. If something feels too intense or unsafe, you’re not meant to endure it - you can slow down, shift, or stop.
If the sensations feel manageable, you might choose to stay and let them unfold. If they don’t, responding to that is part of the process.If tremors are subtle or barely there, that’s equally valid. The body isn’t withholding - it’s moving at a pace that feels safe.
This is the paradox at the heart of TRE: trusting the body’s intelligence, while also trusting yourself enough to not override your own sense of safety.
Clinical Nuance
What TRE does particularly well
TRE operates at the level where talk therapy cannot reach. For stress and tension patterns that are held somatically rather than cognitively - where the nervous system is chronically elevated without a specific memory or belief available to process - TRE offers a direct physical route in. This is where the practice is most consistently reported to produce results: reduced anxiety, lower chronic muscle tension, improved sleep, and a tangible sense of nervous system relief that accumulates with regular practice.
Berceli's own research and subsequent pilot studies support this picture. A 2014 pilot study published in Global Advances in Health and Medicine found meaningful improvements in quality of life among non-professional caregivers practising self-induced tremoring. A growing body of practitioner observation - particularly from work with veterans, first responders, and trauma survivors - points to a consistent pattern of benefit across populations and contexts. Large randomised controlled trials are still limited, which reflects the practical difficulty of standardising a somatic practice for clinical research as much as anything else. The direction of what exists is clear and consistent.
Where TRE fits in a broader picture
TRE works well as a regular somatic practice in its own right - not only as a tool for processing stress or trauma, but as a way of developing an ongoing relationship with the body's own intelligence. Many people find it becomes a quiet anchor in their week: something that reliably brings the nervous system back to itself regardless of what is happening externally.
TRE is not a replacement for trauma therapy in cases of complex or acute PTSD. For those presentations, Somatic Experiencing or EMDR with a qualified practitioner is more appropriate. TRE sits most effectively as a regular self-care and nervous system maintenance practice - and as a meaningful complement to other clinical or therapeutic work rather than a standalone treatment for acute trauma.
What makes it genuinely valuable is precisely its accessibility. Once properly learned, it requires no equipment, no therapist, no revisiting of specific memories. The body does the work. For people carrying the accumulated residue of years of unresolved stress - rather than a discrete traumatic event - that quality of directness is often exactly what is needed.
Safety & Cautions
Essential Boundaries
TRE is generally well-tolerated, but the following boundaries are important.
Learn with a practitioner first. The exercises are straightforward; what a certified TRE provider offers is regulation - the ability to read your nervous system, pace the experience appropriately, and provide support if the tremoring surfaces unexpected emotional material. Several guided sessions before building a solo practice is not over-caution. It reflects the reality that for some people, the body holds considerably more than daily stress.
Work with a practitioner if you have a known history of complex trauma, PTSD, severe anxiety disorders, or dissociation. TRE can be a powerful complement to therapeutic work in these cases - and a skilled practitioner ensures the process is properly held and paced.
Avoid or seek guidance before practising in the following circumstances:
- Pregnancy, particularly from the second trimester onward
- Recent surgery or significant physical injury to the hips, lower back, or legs
- Active psychotic episodes or severe dissociation
- Cardiovascular conditions where significant physiological arousal is contraindicated - consult your physician first
On emotional release. It is common for tremoring sessions to surface unexpected emotion - tears, a wave of grief, or sudden relief. This is generally a sign the process is working, not that something has gone wrong. If you find yourself emotionally overwhelmed and unable to return to a settled state within the session, lower the legs, breathe slowly, and contact your practitioner if needed.
On frequency. Less is often more, particularly in early practice. One session every five to seven days gives the nervous system time to integrate before the next. Increasing frequency gradually is preferable to intensive daily practice in the early stages.
Further Exploration
Tension and Trauma Releasing Exercises: A Scoping Review
National Library of Medicine (PubMed)
SensingSoma - Jo Selwood
Jo Selwood
Neurogenic Tremors for Trauma Release — Podcast with Dr David Berceli
Andrew Weil Center for Integrative Medicine
TRE: A revolutionary new method for stress and trauma recovery
David Berceli
TRE For All — Official Institute & Provider Directory
TRE For All, Inc.
The Body Keeps the Score
Bessel van der Kolk
TRE For All — YouTube Channel
TRE For All, Inc.
David Berceli — Official Website
Dr. David Berceli
Perspective Shifter
Your body carries an ancient, built-in mechanism for discharging the residual charge of a stress response - an involuntary tremor reflex that most mammals use automatically, and that humans have largely learned to suppress. TRE uses a sequence of targeted exercises to fatigue the deep muscles of the lower body, deliberately reactivating that tremor as a tool for nervous system regulation. The result is a shift out of chronic activation and toward a state of settled rest - without requiring any talking, any revisiting, or any cognitive processing of the original stressor.