The Body Keeps the Score

The rediscovery of trauma

Bessel van der Kolk is a Dutch-born psychiatrist who has studied trauma since the 1970s. His career began at a Veterans Administration clinic in Boston. His first patient there was a Vietnam veteran he calls Tom. Tom had nightmares, flew into rages at his own family, and felt alive only when he relived the war. Van der Kolk saw that the past was not past for these men. It lived on in their bodies and their reactions.

At the time, psychiatry had no formal diagnosis for this. Post-traumatic stress disorder entered the official manual in 1980. Van der Kolk tested veterans with Rorschach inkblot cards and found that many either saw scenes from the war or saw nothing at all. Their minds had narrowed to the trauma or shut down.

The book's central claim follows from this work. Trauma is not just a memory of a bad event. It changes the brain, the mind, and the body. The nervous system keeps acting as if the danger is still present. Recovery, therefore, must involve the body as well as the mind.

The book has five parts: the rediscovery of trauma, how trauma affects the brain, how it affects children, how it affects memory, and paths to recovery.

This is your brain on trauma

Van der Kolk uses a simple model of the brain:

• The reptilian brain (the brain stem) runs basic body functions such as breathing and heart rate.
• The mammalian brain (the limbic system) detects danger and handles emotion.
• The rational brain (the neocortex, especially the prefrontal cortex) plans, reflects, and puts experiences into words.

He calls the amygdala the brain's smoke detector. It sends an alarm when it senses danger, before we are aware of it. The medial prefrontal cortex is the watchtower. It looks at the situation and decides whether the alarm is real. In trauma, the smoke detector becomes oversensitive and the watchtower loses control. Small cues, like a sound or a smell, trigger a full alarm.

Brain scans show another effect. When traumatized people relive their memories, activity in Broca's area, a speech center, drops. Van der Kolk calls this speechless terror. Trauma is hard to put into words because the brain region for words goes offline.

He describes a couple, Stan and Ute Lawrence, who were in a massive car pileup in Canada. In the scanner, Stan relived the crash with racing heart and full emotion. Ute went blank. She dissociated. The same event produced two different patterns: hyperarousal and numbing.

Van der Kolk also relies on polyvagal theory, developed by Stephen Porges. It describes three levels of the nervous system's response to threat:

1. Social engagement: we seek help from the people around us.
2. Fight or flight: if no help comes, the body mobilizes.
3. Freeze or collapse: if escape is impossible, the body shuts down.

Traumatized people often lose easy access to the first level. They cannot feel safe with others, so they move quickly to fight, flight, or collapse.

Trauma also damages interoception, the sense of what is happening inside the body. Many survivors cannot name their feelings, a condition called alexithymia. Some feel numb or detached from their bodies, called depersonalization. Van der Kolk argues that you cannot recover if you cannot feel what is happening inside you. People learn to shut down sensations because the sensations feel dangerous.

The minds of children

The third part turns to childhood. Children depend on caregivers to regulate their emotions. Van der Kolk draws on attachment research by John Bowlby and Mary Ainsworth. Securely attached children learn that distress can be soothed. Children whose caregivers are frightening, absent, or unpredictable may develop disorganized attachment. Their source of safety is also their source of fear.

He then discusses the Adverse Childhood Experiences (ACE) study, led by Vincent Felitti and Robert Anda with Kaiser Permanente. It surveyed more than 17,000 mostly middle-class adults about childhood abuse, neglect, and household problems such as addiction or violence. Adverse experiences were common. The more of them a person reported, the higher their risk of later depression, addiction, suicide attempts, and physical diseases such as heart disease.

Van der Kolk and colleagues proposed a new diagnosis, developmental trauma disorder, for children whose problems stem from chronic abuse and neglect. They argued that such children get many separate labels, such as ADHD or oppositional defiant disorder, while the root cause goes untreated. The American Psychiatric Association did not add it to the DSM-5. Van der Kolk presents this as a costly mistake.

The imprint of trauma

The fourth part covers memory. Ordinary memories are stories that change over time. Traumatic memories behave differently. They are often stored as fragments: images, sounds, smells, and body sensations without a clear story. When triggered, they return with the original intensity, as if the event is happening now.

Van der Kolk traces this idea to the nineteenth century. Jean-Martin Charcot studied "hysteria" in Paris. His student Pierre Janet described dissociation: the splitting off of an experience from conscious memory. Freud also worked on these ideas before he moved toward theories based on fantasy.

He discusses the debate over recovered memories of abuse. He argues that people can lose access to traumatic memories and recover them later, and that these memories can be accurate. He describes court cases in which he testified on this point.

Paths to recovery

The fifth part is the longest. Van der Kolk names three broad ways to treat trauma:

1. Top down: talking, connecting with others, and understanding what happened.
2. Medication and technology: drugs that dampen alarm reactions, and devices that change how the brain processes information.
3. Bottom up: letting the body have experiences that contradict the helplessness and collapse of trauma.

He stresses that survivors must learn to feel safe in their bodies, to become calm, and to stay present. The core goal is self-leadership: being in charge of your own mind and body.

Several basic skills support every method:

• Mindfulness. Noticing sensations without judging them strengthens the watchtower. It lets a person observe an alarm reaction instead of being swept away by it.
• Relationships. Feeling seen and heard by safe people calms the nervous system. Van der Kolk stresses that feeling safe with other people is at the core of recovery.
• Rhythm and synchrony. Moving, singing, or drumming in time with others restores a sense of connection that trauma breaks. He points to group practices such as choirs, martial arts, and team sports.
• Agency. Survivors need experiences of acting with effect in the world. Trauma teaches helplessness. Recovery needs moments in which the body feels strong and in control.

He also encourages clinicians to see many symptoms, such as rage, numbness, or addiction, as adaptations that once helped a person survive. Treating only the symptom misses its purpose.

He then reviews specific methods:

• Language and writing. He cites James Pennebaker's research: writing about painful events, even privately, improved people's health. Naming experiences helps, but talk alone rarely reaches the parts of the brain that drive trauma reactions.
• EMDR (eye movement desensitization and reprocessing). Developed by Francine Shapiro, it asks patients to hold a memory in mind while following side-to-side movements. Van der Kolk ran a study comparing EMDR, the antidepressant Prozac, and a placebo. In his account, EMDR produced more lasting improvement, especially for people traumatized as adults.
• Yoga. His team ran a study of trauma-sensitive yoga for women with chronic PTSD. Participants improved, and van der Kolk links the benefit to better interoception and calmer breathing.
• Internal Family Systems (IFS). Developed by Richard Schwartz, IFS views the mind as a family of parts. Some parts carry pain (exiles). Others protect against it (managers and firefighters). The therapy helps a calm core Self lead and care for these parts.
• Psychomotor therapy (PBSP). Created by Albert Pesso and Diane Boyden-Pesso, it uses role players in a structure to rebuild scenes from a client's past with the support that was missing.
• Neurofeedback. People watch their own brain waves on a screen and learn to shift them.
• Theater. He describes programs in which young people and veterans act out roles, such as Shakespeare plays. Acting lets them practice feeling and expressing emotions in their bodies with others.

He also discusses medication, including drugs that reduce nightmares and hyperarousal. He views medicine as a support for therapy, not a replacement.

The wider picture

Van der Kolk ends with a public health argument. Trauma is widespread, and its costs appear in schools, prisons, hospitals, and families. He calls for schools that teach children to regulate emotions, for better support of parents, and for medicine that looks for trauma behind symptoms.

What the critics say

Some researchers argue that van der Kolk overstates the evidence. Critics such as psychiatrist Michael Scheeringa say that claims about trauma being "stored" in the body are metaphors, not established science, and that several of the treatments he favors rest on small studies. His views on recovered memories remain contested by memory researchers. Polyvagal theory, which he uses heavily, is also debated among neuroscientists.

Who should read it

Read it if you have lived through trauma, love someone who has, or work in health, education, or social care. It is dense and sometimes graphic, so read it at your own pace and pair it with professional support if it brings up hard memories.