TRE: How Shaking Can Release What You've Been Holding

When Your Body Starts Shaking

You're lying on the floor, knees bent, feet flat. Your legs begin to tremble — not from cold or fear, but from a deep, involuntary rhythm that seems to know exactly what it's doing. This is neurogenic tremoring, the core of Tension and Trauma Releasing Exercises (TRE).

TRE consists of seven specific exercises designed to fatigue your deep flexor muscles until this tremoring begins naturally. What looks like simple stretches and mild muscle fatigue triggers something more profound: your body's innate mechanism for discharging stored tension.

The tremors typically start in the legs but often spread through the pelvis, spine, and sometimes the entire body. You remain conscious and in control, able to slow or stop the tremoring at any time. Many people describe the experience as deeply releasing, as if their body is finally expressing something it's been holding for years.

From War Zones to Wellness Centres

David Berceli developed TRE in the late 1990s while working as a trauma specialist in conflict zones across Africa and the Middle East. He noticed that children in these environments would naturally shake and tremble after frightening experiences — and that this shaking seemed to help them recover more quickly than adults who suppressed such responses.

Drawing on his background in theology, social work, and massage therapy, Berceli created a systematic way to activate this tremoring in adults. His goal was practical: develop a technique that could be taught quickly to large groups of people without requiring ongoing access to therapists or mental health services.

TRE spread initially through humanitarian networks before reaching clinical settings in Western countries. Today, it's used by trauma therapists, bodyworkers, and stress management programmes worldwide, though it maintains its original emphasis on self-sufficiency and accessibility.

The Neurobiology of Letting Go

TRE targets the psoas muscle — a deep hip flexor that connects your spine to your thighbones and plays a crucial role in the fight-or-flight response. When you perceive threat, the psoas contracts to prepare you to run or assume a protective position. Chronic stress can leave this muscle, along with other deep stabilisers, in a state of persistent tension.

The seven TRE exercises systematically fatigue these muscles through specific stretches and postures. When sufficiently tired, they begin to oscillate involuntarily — the neurogenic tremor. This tremoring appears to activate the parasympathetic nervous system, shifting the body from a state of defensive arousal to one of rest and repair.

From a biomedical perspective, this process may help reset dysfunctional patterns in the nervous system that maintain chronic tension and stress responses. The tremoring could facilitate the completion of interrupted threat responses, allowing the nervous system to return to baseline functioning.

Who Seeks Out Shaking

People drawn to TRE often describe feeling 'stuck' in their bodies. They may have chronic lower back pain, hip tightness, or a general sense of holding tension that massage and stretching don't seem to reach. Others come seeking alternatives to talk therapy, particularly those who feel they've 'processed' their experiences intellectually but still carry them physically.

TRE appeals to individuals who've experienced various forms of stress or trauma but don't necessarily identify with traditional therapy models. This includes military veterans, first responders, healthcare workers, and people who've experienced accidents, medical procedures, or life transitions that left them feeling 'frozen' or hypervigilant.

The technique also attracts those interested in somatic approaches to wellness — people who understand that the body holds memory and tension in ways that purely cognitive approaches might not address.

A Session Unfolds

A typical TRE session begins with the seven preparatory exercises, performed in sequence over 20-30 minutes. These include gentle stretches for the calves, hamstrings, and hip flexors, followed by specific postures designed to fatigue the psoas and surrounding muscles.

The tremoring phase usually lasts 10-15 minutes for beginners, though this can vary significantly. You lie in a supported position while the tremors occur, maintaining awareness of the sensations and breathing naturally. The tremoring often starts as small vibrations in the legs and may intensify or spread, depending on how much tension your body is ready to release.

After your first few sessions with a certified provider, most people can practise TRE independently at home. However, the frequency and duration should be built up gradually — many providers recommend starting with sessions every few days rather than daily practice.

What the Research Reveals

Several small-scale studies suggest TRE may help reduce symptoms of post-traumatic stress, anxiety, and chronic pain. A pilot study with 24 veterans found significant reductions in PTSD symptoms after eight weekly TRE sessions. Another study with 30 university students showed decreased anxiety and improved sleep quality following a six-week programme.

However, these studies are limited by small sample sizes, lack of control groups, and short follow-up periods. A recent systematic review identified only a handful of rigorous trials, concluding that whilst initial findings are promising, larger randomised controlled trials are needed to establish TRE's clinical effectiveness.

The research base is growing, with studies underway examining TRE's effects on various populations. Current evidence suggests the technique is generally safe when practised appropriately, but more data is needed to understand who benefits most and under what circumstances.

Getting Started Safely

TRE sessions with certified providers typically cost £60-100 in the UK, though some offer sliding scale rates. Initial training workshops range from £150-300 for a one or two-day introduction. Many providers offer both individual sessions and group classes.

Look for practitioners certified through TRE for All or similar recognised training organisations. Qualified providers should have completed at least the basic certification programme and be registered with a professional body such as the CNHC or FHT.

While TRE can eventually be self-administered, working with a certified provider initially is strongly recommended, particularly if you have a history of trauma or are taking medication for mental health conditions. They can help you learn to regulate the intensity of tremoring and recognise when to slow down or stop.