How Trauma Lives in the Body

Your body keeps the score — understanding the physical symptoms of unresolved trauma.

The phrase "the body keeps the score" — popularised by psychiatrist Bessel van der Kolk — has entered mainstream awareness for good reason: it captures something that trauma survivors have always known intuitively. Unresolved trauma isn't just a psychological experience. It lives in the body, expressing itself through physical symptoms that medicine has often struggled to explain.

Why Trauma Becomes Physical

When we experience something overwhelming or threatening, the body activates its stress response system — flooding the bloodstream with adrenaline and cortisol, tensing muscles, redirecting blood flow, suppressing digestion and immune function. This is extraordinarily adaptive in short-term threat. The problem arises when the trauma remains unresolved and the nervous system stays in a state of chronic activation.

Over time, this sustained physiological stress has measurable physical consequences. The body becomes locked in a pattern of tension, reactivity and suppressed function that manifests as symptoms — symptoms that often get treated in isolation from their psychological root.

Common Physical Manifestations of Trauma

The body prepares for fight or flight by tensing the muscles, particularly in the neck, shoulders, jaw and lower back. In people with unresolved trauma, this tension becomes chronic — a constant low-level bracing against a threat the rational mind knows isn't present. Tension headaches, jaw pain (often diagnosed as TMJ), neck stiffness and lower back pain are all common physical expressions of this pattern.

The gut and brain are in constant communication via the vagus nerve. When the nervous system is chronically activated, digestive function is suppressed — blood flow is redirected away from digestion and toward the muscles and organs needed for survival. Irritable bowel syndrome, chronic nausea, bloating and appetite disruption are all strongly associated with trauma histories.

Maintaining chronic hypervigilance is exhausting. The nervous system is doing constant work — scanning for threat, managing arousal levels, suppressing emotions that feel unsafe to feel fully. This neurological and physiological labour depletes the body's resources in ways that sleep and rest alone cannot restore.

Chronic stress suppresses immune function over time, making trauma survivors more susceptible to infections, slower to recover from illness, and more likely to develop inflammatory or autoimmune conditions. The link between early childhood trauma and adult physical health outcomes is one of the most robustly documented findings in health psychology.

Research consistently shows that people with four or more adverse childhood experiences are significantly more likely to develop serious physical health conditions in adulthood — including heart disease, autoimmune conditions and chronic pain.

The skin and the nervous system share developmental origins — both derive from the same layer of the embryo. It's perhaps unsurprising, then, that emotional and physiological stress often expresses itself through the skin. Eczema, psoriasis, hives and rosacea are all conditions with a known stress and nervous system component.

Fibromyalgia, chronic pelvic pain, persistent headaches and other pain syndromes that resist conventional medical explanation are disproportionately common in people with trauma histories. This is not to say the pain is imagined — it is entirely real. But its origins may be neurological and physiological rather than structural.

Somatic Approaches to Healing

Because trauma is stored in the body as well as the mind, purely talk-based therapies sometimes reach a ceiling. Somatic approaches — including somatic experiencing, sensorimotor psychotherapy, EMDR and trauma-sensitive yoga — work directly with the body's held patterns, helping to complete the stress responses that became frozen at the time of the original experience.

Healing the body's trauma response is not about forcing relaxation or overriding symptoms. It's about gently and persistently creating the conditions in which the nervous system can finally receive the message that the threat is over.

Take our free 3-minute quiz to understand how your nervous system responds to stress — and what it means for your relationships.

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