Understanding Trauma - the tip of the iceberg
- Elizabeth Reddish
- May 16
- 8 min read

This article has been informed by contemporary trauma research, polyvagal-informed education, and training undertaken through Mind Body Breakthrough Trauma training with Wale Oladipo.
Understanding Trauma: How the Nervous System Learns Survival
Trauma is one of the most misunderstood experiences in modern health and wellbeing conversations. Many people still associate trauma only with catastrophic events, yet trauma is far more complex, personal, and deeply rooted in the nervous system than most realise.
Increasingly, neuroscience, psychology, and trauma-informed therapies are helping us understand that trauma is not simply “what happened to you” — it is what happened inside you as a result of experiences that overwhelmed your capacity to cope, regulate, or feel safe.
Understanding this changes everything.
“The Holy Grail of Wellness Is the Capacity to Remember the Past Safely”
Wellness is determined by how safely we can recall the past.
For some people, remembering a difficult experience may feel uncomfortable but manageable. For others, recalling the same type of event may trigger overwhelming anxiety, shutdown, panic, numbness, or emotional flooding. The difference lies not in the event itself, but in how the nervous system encoded and stored the experience.
When memories are recalled unsafely, the nervous system can recalibrate into a traumatic state, as though the danger is happening all over again. The body reacts in the present to a threat from the past.
This is why someone may:
Freeze during conflict because of childhood experiences
Panic when receiving criticism
Feel unsafe in relationships despite reassurance
Experience chronic tension, digestive issues, or exhaustion without understanding why
Trauma-informed therapy helps create what many clinicians call safe remembering — the ability to revisit past experiences without the nervous system becoming overwhelmed.
With support, psychoeducation, compassion, and co-regulation, experiences that once felt unbearable can gradually become integrated into a coherent narrative. When understanding deepens, narratives change — and when narratives change, remembering changes.
Researchers such as Bessel van der Kolk, Stephen Porges, and Gabor Maté have all contributed significantly to our understanding of how trauma lives within both brain and body.
“Trauma Is Personal and Trauma Is Universal”
Trauma is deeply personal because every nervous system is unique.
Two people can experience the same event and respond very differently. One may recover quickly, while another develops chronic symptoms of dysregulation.
This does not mean one person is “stronger” or “weaker.” It reflects differences in:
Previous life experiences
Attachment and relationships
Genetics and sensitivity
Support systems
Age and developmental stage
Existing stress load
A child repeatedly criticised at school may develop deep shame and hypervigilance, while another child in the same environment may not. A difficult birth, medical procedure, divorce, bullying, emotional neglect, financial instability, or sudden loss can all become traumatic if the nervous system experiences overwhelm without sufficient support or safety.
At the same time, trauma is universal. No life is free from adversity.
Understanding trauma through a nervous system lens helps move us away from comparison:
“It wasn’t bad enough.”“Other people had it worse.”“I should be over it by now.”
Trauma is not measured by the severity of the event alone. It is measured by the impact on the nervous system.
“Trauma Is Not the Event. It Is the Nervous System’s Overwhelmed Response”
Neurologically, trauma occurs when an experience overwhelms the nervous system’s capacity to process, regulate, or restore safety.
This means trauma is not simply psychological - it is physiological.
When a threat is detected, the brain and body activate survival responses automatically:
Fight
Flight
Freeze
Fawn
Shutdown
Stress hormones such as cortisol and adrenaline flood the body to maximise survival. Heart rate increases. Muscles tighten. Digestion slows. Attention narrows.
In healthy stress responses, the nervous system eventually returns to baseline once safety is restored.
However, when overwhelm is too intense, prolonged, repeated, or unsupported, the nervous system may fail to fully reset. The body continues behaving as though danger remains present.
This is why trauma survivors may experience:
Hypervigilance
Chronic anxiety
Emotional numbness
Sleep disturbances
Panic attacks
Digestive problems
Chronic fatigue
Autoimmune conditions
Difficulty trusting others
Persistent shame or self-criticism
Trauma is therefore best understood as a neurophysiological injury affecting both brain and body.
“The Same Pathway Processes Psychological and Physical Injury”
One of the most fascinating discoveries in neuroscience is that the brain processes psychological trauma and physical injury through many of the same pathways.
The immune system becomes activated in both situations.
When there is a physical injury, such as a cut or broken bone, immune cells know where to go to repair the damage.
Psychological trauma is different.
The nervous system senses danger and activates survival biology, but there is no visible wound for the immune system to “fix.” The body can remain stuck in prolonged activation, contributing to chronic inflammation.
Over time, this prolonged stress response may increase vulnerability to:
Chronic pain
Fatigue syndromes
Digestive disorders
Hormonal imbalances/disorders
Migraines
Fibromyalgia
Cardiovascular disease
Autoimmune conditions
The landmark Adverse Childhood Experiences (ACE) study demonstrated strong links between childhood adversity and long-term physical health outcomes later in life.
This does not mean trauma automatically causes illness. Rather, it highlights how profoundly interconnected the nervous system, immune system, emotions, and physical body truly are.
“Trauma Is Not Just Emotional - It Affects Every System”
Trauma affects:
The nervous system
The immune system
Digestive and elimination systems
Hormonal regulation
Sleep cycles
Memory and cognition
Emotional processing
Relationships and attachment
This is why trauma symptoms can look so varied.
One person may become anxious and restless. Another may become exhausted and shut down. Another may develop perfectionism, people-pleasing, or chronic overworking.
Another may disconnect emotionally and struggle to feel anything at all.
Trauma is not simply stored as a memory. It is reflected in posture, breathing, muscle tension, digestion, immune activity, emotional regulation, and the body’s overall sense of safety.
A biopsychosocial understanding of trauma recognises that healing must include the whole person — body, brain, emotions, relationships, environment, and meaning-making.
“When Integration Fails, the Nervous System Protects Through Disconnection”
When experiences cannot be integrated safely, the nervous system shifts into protective survival states.
These may include:
Emotional numbing
Dissociation
Collapse
Helplessness
Hypervigilance
Chronic anxiety
Detachment from self or others
These responses are often misunderstood as weakness, laziness, attention-seeking, or dysfunction.
In reality, they are intelligent survival adaptations.
A child growing up in unpredictable environments may learn hypervigilance to stay safe. Someone repeatedly rejected may disconnect emotionally to avoid pain. A person living with chronic overwhelm may numb themselves through addictive behaviours simply to cope.
The nervous system always prioritises survival first.
“The Nervous System Has Three Survival Pathways”
Drawing from Polyvagal Theory, the nervous system operates through hierarchical survival states.
1. Safety Response - The Healing State
When safety is present, the nervous system supports:
Calmness
Curiosity
Connection
Creativity
Learning
Empathy
Mindfulness
Flexibility
This is the physiological state in which healing, growth, learning and integration occur.
2. Stress Response - Mobilisation
When danger is perceived, the body mobilises energy through anxiety, tension, fight-or-flight activation, and hypervigilance.
Anxiety is not punishment. It is protection.
The nervous system is trying to anticipate danger and keep us safe.
3. Trauma Response - Shutdown
When stress becomes too overwhelming and escape feels impossible, the nervous system may enter shutdown:
Numbness
Collapse
Dissociation
Exhaustion
Hopelessness
Disconnection
This state is adaptive, not pathological.
The body is conserving energy and protecting against overwhelm.
“The Goal of the Brain Is Not Happiness - It Is Survival”
One of the most important trauma-informed perspectives is recognising that the brain’s primary goal is survival - not happiness, productivity, or perfection.
Stress hormones are biologically expensive, but they exist to keep us alive.
Anxiety, low mood, irritability, and emotional overwhelm are often natural responses to prolonged stress, uncertainty, isolation, loss, or adversity.
This understanding helps reduce shame.
Many people believe:
“Something is wrong with me.”
Often, the nervous system is simply responding exactly as it was designed to in difficult circumstances.
“Addiction Is a Defence, Not a Weakness”
Addictive behaviours often emerge when internal regulation feels unavailable.
Food, alcohol, scrolling, overworking, gambling, pornography, shopping, OCD tendencies, perfectionism, or even chronic busyness may temporarily help regulate overwhelming emotional states.
These behaviours are rarely about lack of willpower.
They are often attempts to:
Numb pain
Escape overwhelm
Create stimulation
Regulate anxiety
Avoid emotional collapse
Feel temporary relief
Understanding addiction through a trauma-informed lens replaces shame with curiosity and compassion.
The question becomes:
“What is this behaviour helping the nervous system survive?”
“You Cannot Numb Your Way to Healing”
Healing requires movement through three stages:
From numbing
To feeling
To healing
This does not mean reliving trauma intensely or endlessly revisiting the past. Effective trauma therapy works gradually and safely, helping individuals build capacity to experience emotions without becoming overwhelmed.
Healing often involves:
Nervous system regulation
Safe relationships
Psychoeducation
Body awareness
Emotional processing
Self-compassion
Restoring a sense of agency
Building resilience through co-regulation and connection
Most importantly, healing involves understanding that trauma responses are adaptive.
“You Are Not Broken - This Is Adaptive”
Perhaps the most transformative shift in trauma education is this:
Trauma responses are not signs of failure.They are signs of survival.
The nervous system adapted intelligently to protect you in the best way it knew how.
Symptoms that once felt shameful often begin to make sense when viewed through a compassionate, neurobiological lens.
And when people begin to feel safe enough to understand their story differently, healing becomes possible.
How Kinesiology Supports Trauma Healing
One of the most important developments in modern trauma understanding is the recognition that healing cannot happen through logic alone. Trauma is not simply stored as a story in the mind - it is experienced through the nervous system and held within the body.
This is why many people can intellectually understand their experiences and still find themselves reacting with anxiety, shutdown, hypervigilance, overwhelm, or emotional numbness.
The body is still carrying the survival response.
This is also why body-based, nervous-system-led approaches are becoming increasingly valued within trauma-informed care.
A Gentle, Nervous-System-Led Approach
Kinesiology offers a holistic and supportive approach to wellbeing by working with the body’s own feedback systems rather than forcing change through rigid protocols or practitioner-driven interpretation.
Rather than asking:
“What is wrong with you?”
Kinesiology asks:
“What is your nervous system trying to communicate?”
Using muscle monitoring and an awareness of stress responses within the body, kinesiology aims to identify where the system may be experiencing overwhelm, imbalance, or protective adaptation.
Importantly, the process is led by the individual’s nervous system and capacity for safety in that moment.
This matters deeply in trauma work because healing cannot be rushed or imposed externally.
Trauma often develops when experiences occur too much, too fast, too soon, or without sufficient support.
Effective healing therefore requires the opposite:
Safety
Choice
Curiosity
Regulation
Gradual integration
Respect for the body’s timing
Supporting Regulation Rather Than Retraumatisation
Many people living with trauma have spent years overriding their body’s signals in order to survive. They may disconnect from emotions, ignore exhaustion, suppress stress responses, or push through overwhelm without recognising the cost to their nervous system.
Kinesiology encourages individuals to reconnect with body awareness gently and safely.
Sessions may support:
Nervous system regulation
Emotional processing
Stress reduction
Awareness of survival patterns
Improved mind-body connection
A greater sense of grounding and safety
Because the body guides the process, kinesiology can help reduce the risk of overwhelm that sometimes occurs when people are pushed to revisit traumatic experiences before they have sufficient regulation and support.
The goal is not to force disclosure or relive trauma intensely, but to support the nervous system in restoring flexibility, resilience, and safety over time.
Healing Through Safety and Connection
Trauma-informed healing recognises that the body changes in the presence of safety, co-regulation, and compassionate support.
When individuals begin to feel safer within themselves:
Hypervigilance softens
Emotional capacity increases
The body becomes less defensive
Energy becomes more available for healing, connection, and growth
Kinesiology aligns with this understanding by recognising the wisdom of the body and respecting the nervous system’s protective responses rather than viewing symptoms as failures.
Healing is not about “fixing” a broken person.
It is about helping the nervous system remember that safety, connection, and regulation are possible again.
Further Reading and References
The Body Keeps the Score by Bessel van der Kolk
In the Realm of Hungry Ghosts by Gabor Maté
Waking the Tiger by Peter Levine
Polyvagal Theory by Stephen Porges
The Adverse Childhood Experiences (ACE) Study by the Centers for Disease Control and Prevention and Kaiser Permanente
Trauma education and nervous system concepts informed by training with Wale Oladipo through Mind Body Breakthrough




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