The Body Doesn’t Keep the Score. The Brain’s Predictions Do.

Simone Holderbach
Apr 20
4 min read

Emerging neuroscience reframes trauma and chronic symptoms not as stored damage, but as predictions the brain can learn to update.

For more than a decade, the phrase “the body keeps the score” has shaped how many people think about trauma. It is validating, memorable, and it helped move the field away from the idea that trauma is simply “in the mind.”

But a recent neuroscience paper suggests that the metaphor may not actually be biologically accurate.

According to research published in Frontiers in Systems Neuroscience by Steven Kotler, Michael Mannino, Glenn Fox, and Karl Friston, trauma may not be stored in the body at all. Instead, it may persist as a predictive loop in the brain.

This distinction may sound subtle, but it fundamentally changes how we think about healing.

Modern neuroscience increasingly understands the brain not as a passive receiver of reality but as a prediction engine. The brain constantly generates expectations about what will happen next, using past experiences to anticipate the future. These predictions allow the nervous system to respond quickly to potential threats.

Most of the time, this system works beautifully. It helps us navigate the world efficiently and safely.

But when traumatic experiences assign excessive weight to danger signals, the prediction system can become rigid. The brain begins to expect threat so strongly that it generates the physiological sensations associated with danger: a racing heart, muscle tension, hypervigilance, or a surge of anxiety.

Those sensations are then interpreted as confirmation that danger is present, which strengthens the original prediction.

In other words, the system reinforces itself. The brain predicts threat, the body responds accordingly, and the brain interprets that response as evidence that its prediction was correct.

What we experience is not trauma stored in the body. It is a prediction system that has become stuck.

For years, trauma has often been described as something physically held in the body, like a scratch on a record that causes the same part of the song to skip over and over again. But the predictive brain model suggests a different metaphor.

A more accurate analogy might be a cell phone autocorrect that learned the wrong rule and refuses to update.

You type a new message, but autocorrect keeps inserting the same word because its prediction system believes it already knows what should come next. The brain can behave in a similar way. Past experiences create strong expectations about danger, and those expectations continue shaping how new sensations are interpreted.

The body becomes the messenger, but the prediction originates in the brain.

Understanding trauma this way has important implications for treatment. If trauma were physically stored in tissues, healing would require releasing or purging what is trapped in the body. But if trauma is better understood as a rigid prediction, healing becomes a process of updating the brain’s model of the world.

The paper describes this in terms of restoring metastability, the brain’s ability to move flexibly between states instead of becoming locked into one rigid pattern.

Interestingly, very different therapeutic approaches appear to work through this same mechanism. Exposure-based therapies, EMDR, mindfulness practices, flow states, and psychedelic-assisted therapy all appear to increase flexibility in large-scale brain networks, allowing the nervous system to revise outdated predictions.

While the paper focuses on trauma, the same framework may help explain many chronic conditions that lack clear structural pathology. Chronic pain, persistent fatigue, functional neurological symptoms, and certain post-viral syndromes are increasingly understood through the lens of predictive brain models rather than ongoing tissue damage.

This perspective is closely related to the emerging field sometimes called neuroplastic medicine, which focuses on how learned brain predictions can generate real physical symptoms.

When I read this paper, it felt like a moment of confirmation. Over years of working in chronic symptom recovery, I had already begun to see the same pattern emerge in my clients.

Most treatments focus heavily on threat reduction: calming the nervous system, settling the body, and helping people move out of chronic fight-or-flight states. That work is important and often necessary. But in my experience, it only addresses part of the equation.

What was often missing was the systematic practice of building safety signals.

Not just reducing danger, but actively helping the brain experience moments of safety, interest, curiosity, and connection. In other words, helping the nervous system gather new evidence about the world.

This is where attention retraining becomes powerful.

In my work, I often describe this process as attention training for the nervous system: helping the brain repeatedly notice and experience moments of safety, interest, and connection so its predictions can gradually update.

Individually, these moments may seem small. A sense of curiosity. A moment of beauty. A feeling of connection. But repeated consistently, they provide the brain with new evidence, and the brain learns through evidence.

Over time, those signals can loosen the grip of rigid threat predictions and gradually create new predictions of safety. This does not require forcing positivity or ignoring what is difficult. Instead, it involves gently expanding what the nervous system learns to expect from life.

This realization is what led me to build two programs grounded in this principle.

GLIMMER is a five-week self-paced course designed to help retrain the nervous system to notice existing signals of safety (launching in May; waitlist currently open). The

mindbodyJOY community is a daily joy practice space where people strengthen those new predictive patterns through small, consistent moments of positive affect.

Both approaches are built on the same premise: the brain changes through repeated experience.

If trauma and chronic symptoms are partly driven by rigid predictions in the brain, then healing may not require endlessly digging into the past. Instead, it may involve helping the brain gather enough new experiences to update its expectations about the present.

You are not permanently damaged. You may simply be caught in an outdated prediction.

And predictions can change.

Not because of wishful thinking, but because the brain is built for neuroplasticity at any age.