Exploring Trauma, the Nervous System and the Subtle Ways the Body Learns to Protect Us
Artwork: Travis Bedel
Why Everyone Is Talking About Trauma in the Body
The idea that trauma lives in the body has become one of the most widely discussed concepts in modern conversations about healing. The phrase appears everywhere now, from therapy offices to yoga studios to podcasts exploring the nervous system.
Much of this cultural shift can be traced to books like The Body Keeps the Score, which helped bring decades of trauma research into mainstream awareness. The core insight is simple but powerful: overwhelming experiences shape not only what we think and remember but also how the nervous system responds to the world.
Once people begin noticing this in their own bodies, the idea makes intuitive sense. The shoulders lift during a difficult conversation. The breath becomes shallow when an old memory surfaces. The body reacts before the thinking mind has time to interpret what is happening.
When people notice experiences like this, they often begin asking a deeper question. What does it actually mean to say that trauma is “stored” in the body?
“Trauma is not something the body stores.
It is something the nervous system learns.”
A Moment I Often See in the Therapy Room
I often see this moment of curiosity appear in the therapy room. Someone may be describing a difficult experience calmly while their body is doing something entirely different.
Their voice remains steady while their shoulders slowly rise toward their ears, or their breath becomes shallow without them noticing. The mind has organized the story, but the nervous system is still responding to it.
Moments like this are not unusual. In fact they are one of the reasons the phrase trauma lives in the body resonates with so many people.
Something in us recognizes that our experiences do not live only in memory. They also shape how the body prepares for the world.
How We Came to Understand Trauma This Way
The idea that trauma lives in the body did not come from a single theory or discipline. It emerged gradually as clinicians and researchers began noticing something that traditional talk therapy alone could not fully explain.
Many trauma survivors understood their experiences intellectually, yet their bodies continued reacting as though the danger were still present. The story of the event could be told clearly, but the nervous system behaved as if the event had not fully passed.
Psychiatrist Judith Herman, writing in the early 1990s, was among the first to articulate this clearly in modern trauma theory. She described trauma as an experience that overwhelms the ordinary systems through which people make sense of their lives.
Later, researchers such as Bessel van der Kolk began studying how traumatic experiences affect brain function, memory, and physiological stress responses. His book The Body Keeps the Score helped bring these insights into mainstream awareness by showing how trauma can shape the nervous system and the body’s stress response.
At the same time, clinicians working more directly with the body were developing new therapeutic approaches. Peter Levine’s Somatic Experiencing, Pat Ogden and Janina Fisher’s Sensorimotor Psychotherapy and Stephen Porges’ Polyvagal Theory all highlighted the role of the autonomic nervous system in trauma responses.
Each of these perspectives pointed toward the same realization. Trauma is not only something we remember. It is something the nervous system learns.
The Psychological Lens
From a psychological perspective, trauma changes the way experience is organized and remembered.
Under ordinary circumstances, events in our lives become integrated into a narrative. We remember what happened, we place it in the past, and the experience becomes part of our personal story. Traumatic experiences do not always follow this pathway.
When something overwhelms the nervous system, the brain’s usual memory processes can become disrupted. Instead of being stored primarily as narrative memory, elements of the experience remain active in implicit memory. Sensory impressions, emotional states, and threat detection patterns linger beneath conscious awareness.
This helps explain why people sometimes react strongly to situations that appear harmless on the surface. Something in the present moment resembles something from the past, and the nervous system responds before the thinking mind has time to interpret what is happening.
One of the quiet truths about trauma work is this.
The nervous system is not trying to hurt us. It is trying to protect us using information from another time.
The Body Lens
If the psychological lens helps us understand trauma, the body lens helps us see how those patterns actually operate in real time.
The autonomic nervous system is constantly scanning the environment for cues of safety and threat. Polyvagal Theory describes how the nervous system shifts between states of social engagement, mobilization, and shutdown depending on what it perceives.
When the nervous system senses safety, the body organizes around connection. Breathing becomes fuller, facial expression softens, and attention widens. When it senses danger, the body prepares for survival.
Most of this happens automatically and outside conscious awareness. The shoulders lift slightly. The jaw tightens. The breath becomes small and careful.
Somatic therapies work directly with these physiological patterns. Approaches such as Somatic Experiencing and Sensorimotor Psychotherapy help people notice the body’s responses in small, manageable ways. Practices like titration, pendulation, grounding, and resourcing allow the nervous system to experience regulation without becoming overwhelmed.
Seen from this perspective, the body is not storing trauma like an object kept somewhere inside. The body is expressing the strategies the nervous system learned in order to survive.
Understanding this intellectually is helpful, but it can be even more meaningful to notice the nervous system directly in your own body. Before going further, you might try a brief experiment.
Bring to mind a place where you feel at ease. It might be somewhere in nature, a room you love, or a place you visited long ago. The image does not have to be detailed. What matters is that something in you recognizes it as pleasant or safe.
As you imagine being there, take a moment to notice what happens in your body. Sometimes the breath deepens slightly. The muscles around the eyes soften. The shoulders may settle just a little lower.
Nothing needs to change for this practice to work. Simply noticing is enough.
In somatic therapies this type of exercise is often called imaginal resourcing. The nervous system responds not only to what is happening around us but also to the images and meanings we hold inside.
“The body is not a container holding the past.
It is a living system continuously interpreting the present.”
The Spiritual Lens
Long before modern trauma theory existed, many contemplative traditions had already observed that experiences leave impressions in the body and mind. In yoga philosophy these impressions are called samskaras, patterns formed through repeated experience that influence how we perceive and respond to life.
Practices like breath awareness, meditation, and gentle movement help people slow down enough to observe these patterns directly. As awareness grows, the relationship to those patterns begins to change.
In my experience as both a therapist and a yoga teacher, this is often where something important shifts for people. They begin to see that their reactions are not personal failures or character flaws.
They are learned responses that once served a purpose.
Spiritual traditions also remind us of something equally important:
“Human beings are more than
the sum of their wounds.”
A Different Way to Think About the Body
When people say trauma is stored in the body, they are often pointing to something they have felt but not fully understood. The body reacts before the mind explains. The nervous system remembers something the story alone cannot resolve.
Seen this way, the body is not a container holding painful experiences. It is a living system shaped by everything we have lived through.
And like any living system, it continues to learn.
With enough moments of safety, attention, and connection, the nervous system slowly updates its understanding of the world. Sometimes those moments are surprisingly small. A deeper breath. A shoulder softening. The quiet recognition of what I earlier called the softening place.
Over time those small experiences begin to accumulate. What once felt dangerous begins to feel workable. What once felt impossible begins to feel imaginable.
The body does not simply carry the past. It is also where new experience becomes possible.
If you're interested in exploring these ideas more deeply, my self-paced course Somatic Skills for Embodied Awareness introduces practical nervous system practices including grounding, resourcing and embodied awareness. Learn more here.
About the Author
Shauna Bergh, LMFT, SEP, RYT-500 is a somatic psychotherapist and yoga teacher based in the San Francisco Bay Area. Her work integrates trauma informed psychotherapy, nervous system education and contemplative practices drawn from yoga philosophy.
In addition to her clinical practice, Shauna teaches courses for therapists and individuals interested in embodied awareness, helping people develop greater awareness of their nervous system through breathwork, somatic practices and guided self inquiry. Her approach bridges psychology, the body and contemplative traditions with a focus on cultivating safety, presence and deeper connection in our increasingly complex world.