Trauma is not simply a psychological event confined to memory; it is an experience that reorganizes the body, the brain, and the lived experience of daily life. Understanding how trauma affects functioning across physical and psychological domains is essential both for those who have experienced it and for those who support them.
Trauma and Memory
One of trauma’s most disorienting effects is its impact on memory. Through a process of dissociation, memories of traumatic events are frequently divided into distinct fragments that remain lodged in the mind: sensory pieces, emotional impressions, and bodily sensations rather than coherent narrative recollections. These fragmented memories can surface unexpectedly, often triggered by sensory cues that bear some resemblance to the original event, producing post-traumatic stress symptoms that feel inexplicably vivid and present.
This fragmentation also increases vulnerability to physical illness. The chronic activation of the body’s stress response, maintained by a nervous system that has not fully registered that the threat has passed, takes a meaningful toll on immune function, cardiovascular health, and overall vitality.
Neurological Impacts of PTSD
Research has identified three brain regions particularly affected by post-traumatic stress:
- The hippocampus (involved in emotion and memory processing) shows altered activity in those with PTSD, affecting the capacity to contextualize memories in time.
- The amygdala (involved in threat detection and emotional response) demonstrates heightened activation, contributing to hypervigilance, reactivity, and difficulty distinguishing past threat from present safety.
- The prefrontal anterior cingulate cortex (involved in complex executive functions including emotional regulation, decision-making, and impulse control) shows reduced volume and activity, impairing the capacity to modulate emotional responses.
These neurological changes are not permanent character flaws or signs of weakness; they are the body and brain’s adaptive responses to overwhelming experience, and they are amenable to change through appropriate treatment.
The Body as a Site of Trauma
Bessel van der Kolk’s foundational research has demonstrated that trauma is literally scored in the body, held in patterns of muscular tension, autonomic nervous system dysregulation, and even at the cellular level. The body “keeps the score,” maintaining a record of experiences that the conscious mind may have partially set aside.
A randomized controlled trial by van der Kolk and colleagues at the Trauma Center found that yoga produced PTSD symptom reductions comparable to those achieved with medication, not as a standalone cure, but as a meaningful adjunctive component of recovery (van der Kolk et al., 2014). This finding reflects the broader understanding that healing from trauma requires attending to the body, not only the mind.
The Possibility of Recovery
Perhaps most importantly: recovery is possible. The human organism possesses remarkable capacities for self-repair, adaptation, and growth. Psychotherapy, particularly trauma-informed approaches that integrate somatic awareness, relational safety, and evidence-based techniques, creates the conditions in which this natural healing capacity can be activated.
Kelly Turner’s qualitative research on unexpected cancer remissions offers a complementary lens: across hundreds of documented cases, patients who recovered against medical odds had engaged in meaningful shifts across psychological, relational, and somatic domains (Turner, 2014). This does not minimize the reality of trauma’s impacts, but it points to the breadth of the resources available when healing is approached holistically.
References
van der Kolk, B. A., Stone, L., West, J., Rhodes, A., Emerson, D., Suvak, M., & Spinazzola, J. (2014). Yoga as an adjunctive treatment for posttraumatic stress disorder: A randomized controlled trial. Journal of Clinical Psychiatry, 75(6), e559–565.
Turner, K. A. (2014). Radical Remission: Surviving Cancer Against All Odds. HarperOne.
Clarity Therapy offers trauma-informed psychotherapy that addresses both the psychological and somatic dimensions of healing. We invite you to reach out to learn more.
