For decades, mental health has often been explained through a chemical imbalance model: depression as low serotonin, psychosis as dopamine dysregulation, anxiety as a problem of brain chemistry. These models have helped shape modern psychiatry, but they are no longer enough on their own.
A growing body of research now suggests that mental health symptoms may also involve immune signalling, inflammation, gut-brain disruption, metabolic dysfunction, mitochondrial stress, blood sugar instability, sleep disruption and the body’s long-term response to trauma.
At Goodsky, this shift makes sense. Many people who experience depression, anxiety, PTSD, emotional dysregulation, fatigue or treatment-resistant symptoms are not simply dealing with “thoughts” or “neurotransmitters”. They may be living with a body, brain and nervous system that have adapted to prolonged stress, early adversity, attachment disruption, intergenerational trauma, metabolic instability or chronic threat physiology.
This is why Goodsky looks beyond symptoms alone. Our model is layered, personalised and whole-person. We consider the interaction between trauma, nervous system regulation, functional pathology, nutrition, sleep, blood sugar, gut health, inflammation, hormones, mitochondrial function and the body’s capacity to return to safety.
Professional Note: This article is for general educational purposes only. It does not claim that inflammation, trauma, the Cell Danger Response or blood sugar instability explains every mental health condition. Mental health is complex, individual and multi-factorial. Goodsky’s role is to support a broader understanding of modifiable contributors that may influence wellbeing and recovery.
The New Science: Immune Dysfunction and Mental Health
A 2025 paper published in Molecular Psychiatry, titled “Immunological drivers and potential novel drug targets for major psychiatric, neurodevelopmental, and neurodegenerative conditions”, examined hundreds of immune-response biomarkers across several neuropsychiatric conditions.
The researchers investigated whether immune-related biology may play a causal role in conditions including depression, bipolar disorder, schizophrenia, anxiety, ADHD, autism and Alzheimer’s disease. Their findings suggested that immune pathways may be relevant in some psychiatric and neurodevelopmental conditions, although the authors were clear that more research is needed before these markers can be used as stand-alone diagnostic tools or treatment targets.
This is an important distinction. The study does not prove that all mental illness is caused by inflammation. But it does add weight to a broader shift in psychiatry: mental health conditions may need to be understood through immune, metabolic, inflammatory and biological systems as well as psychological and social ones.
Beyond “What’s Wrong With You?”
Trauma-informed care begins with a different question.
This shift was popularised by Oprah Winfrey and Dr Bruce D. Perry in their book What Happened to You? Conversations on Trauma, Resilience, and Healing. It is a compassionate and clinically important reframing.
At Goodsky, we would take that question one layer deeper:
This question helps connect trauma-informed care with emerging research in inflammatory and metabolic psychiatry.
Early Life Trauma, ACEs and the Biology of Threat
Adverse Childhood Experiences, often called ACEs, include experiences such as abuse, neglect, family violence, household instability, parental substance misuse, mental illness in the home, separation, loss, emotional absence or chronic fear during development.
ACEs do not simply create difficult memories. They can shape how the developing nervous system learns safety, danger, trust, emotional regulation and stress response. A child who grows up in a chronically unsafe, unpredictable or emotionally unavailable environment may adapt by becoming hypervigilant, shut down, pleasing, perfectionistic, self-reliant or disconnected from their own needs.
These adaptations are not character flaws. They are survival strategies.
Over time, chronic threat exposure may influence:
- Autonomic nervous system regulation
- Sleep and circadian rhythm
- Cortisol and HPA-axis function
- Immune signalling and inflammatory load
- Gut-brain communication
- Blood sugar regulation
- Mitochondrial function and cellular energy
- Emotional regulation and relational safety
This is why trauma is not only psychological. It is also biological.
Attachment: The Original Nervous System Regulator
Before a child can self-regulate, they are regulated through relationship. A calm, attuned caregiver helps a child’s nervous system learn rhythm, repair and safety. When caregiving is inconsistent, frightening, emotionally unavailable, intrusive or overwhelmed, the child may learn that connection is unsafe, unpredictable or conditional.
Attachment structure can influence how the nervous system responds to stress across life. Some people become anxious and hypervigilant. Some become avoidant and self-contained. Some move between longing for closeness and fearing it. Others become highly adapted to the emotional needs of others while losing contact with their own.
At Goodsky, attachment is not treated as an abstract psychological theory. It is part of how we understand emotional regulation, relationship patterns, trauma responses, nervous system safety and the body’s capacity to move out of defence.
Intergenerational Trauma: When Survival Patterns Are Passed Down
Trauma can move through families in many ways. It may be passed through stories, silence, emotional rules, unresolved grief, nervous system patterns, family roles, parental stress, relationship dynamics and the way safety or danger is communicated.
This does not mean blame. Many parents are doing the best they can with the nervous system and survival patterns they inherited. But it does mean that a child may inherit more than genes. They may inherit a family template for danger, emotion, trust, conflict, closeness and survival.
In this way, intergenerational trauma can shape attachment, stress physiology, immune load, metabolic risk and mental health vulnerability long before a person has language for what they are experiencing.
The Cell Danger Response: Why the Body May Stay in Defence
The Cell Danger Response (CDR), described by Dr Robert K. Naviaux, is an evolutionarily conserved metabolic response that helps protect cells and the body from threat. It can be triggered by biological, chemical, physical or psychological stressors that exceed the body’s capacity to maintain normal balance.
In simple terms, the Cell Danger Response is the body’s emergency mode. When cells detect danger, mitochondria shift their priorities. Instead of focusing primarily on energy production, repair, growth and normal communication, the body may prioritise defence, conservation and survival.
This is useful in the short term. It helps the body respond to injury, infection, toxin exposure or acute threat. But if danger signals persist, the system may struggle to return fully to repair mode.
Possible ongoing danger signals may include:
- Unresolved trauma or chronic stress
- Poor sleep or circadian disruption
- Gut dysbiosis or gut inflammation
- Blood sugar instability
- Nutrient deficiencies
- Toxin or environmental load
- Chronic infections or post-viral stress
- Ongoing inflammation
- Relationship stress or lack of safety
This does not mean every symptom is “caused by” the Cell Danger Response. Rather, CDR gives us a helpful way to understand why a person may feel stuck in exhaustion, hypervigilance, inflammation, poor sleep, gut symptoms, brain fog, emotional reactivity or shutdown.
Survival Responses: Fight, Flight, Freeze, Fawn and Flop
When the nervous system detects threat, it can organise around different survival responses. These are not signs of weakness; they are protective strategies. The problem is when those responses remain active long after the original danger has passed.
Fight
Irritability, anger, defensiveness, control, conflict, and a sense of urgency.
Flight
Anxiety, restlessness, overworking, avoidance, and constant busyness.
Freeze
Shutdown, indecision, numbness, dissociation, and feeling completely stuck.
Fawn
People-pleasing, poor boundaries, over-adapting, and a deep fear of conflict.
Flop
Collapse, helplessness, profound exhaustion, low motivation, and giving up.
Inflammation May Be Downstream of Survival Biology
It is tempting to say, “Inflammation causes depression” or “neuroinflammation causes mental illness”. That may be too simplistic. A more careful and clinically useful model looks at the cascading effect of stress on biology:
1. The Catalyst
Early adversity, attachment disruption, chronic stress, medical trauma, metabolic instability or environmental load.
2. The Autonomic Shift
Nervous system dysregulation and the establishment of chronic threat physiology.
3. The Cellular Alarm
The Cell Danger Response, mitochondrial stress and impaired cellular repair signalling.
4. The Systemic Response
Systemic inflammation, gut-brain disruption, oxidative stress, blood sugar instability and hormone disruption.
5. The Presentation
Depression, anxiety, trauma symptoms, fatigue, brain fog, sleep disruption and emotional dysregulation.
This model does not reduce mental health to one cause. It recognises that symptoms may emerge from several interacting layers.
Blood Sugar: A Missing Link in Emotional Regulation
Blood sugar stability is often overlooked in mental health care, yet it can have a major influence on mood, energy, focus and stress tolerance.
When blood sugar rises and falls sharply, the brain may experience this as a form of internal threat. A blood sugar crash can trigger adrenaline and cortisol, leading to anxiety, irritability, cravings, fatigue, shakiness, brain fog or emotional volatility.
For someone whose nervous system is already sensitised by trauma, poor sleep, chronic stress or attachment insecurity, a glucose crash may not feel like a simple metabolic event. It may feel like absolute danger.
This is why Goodsky includes blood sugar regulation and metabolic health as part of the broader mental health picture. In some cases, continuous glucose monitoring, dietary changes, protein adequacy, meal timing, sleep support and reduced ultra-processed food intake can provide useful insight into mood patterns and emotional regulation.
Interoception: When Body Signals Feel Like Danger
Interoception is the brain’s ability to sense and interpret internal body signals, such as hunger, heart rate, breath, gut sensations, temperature, pain, fatigue or blood sugar changes.
In people with anxiety, trauma or depression, interoception can become distorted. A normal body sensation may be interpreted as a warning sign. Hunger may feel like panic. A racing heart may feel like danger. Fatigue may feel like collapse. A glucose dip may feel like emotional crisis.
This is where somatic therapy, breathwork, nervous system regulation and metabolic stabilisation can meet. The goal is not simply to “think differently”. It is to help the body become safer to inhabit.
Why Standard Pathology May Not Be Enough
Standard blood tests are valuable and often essential. They can identify major medical issues, anaemia, thyroid disease, infection, diabetes risk, liver or kidney concerns and other important health markers.
However, standard pathology may not fully explain why someone feels inflamed, exhausted, reactive, sleepless, foggy, anxious, depressed or treatment-resistant. That is why Goodsky may consider a broader functional and metabolic picture, depending on the person’s presentation and practitioner recommendations.
| Biological Area | Why it may matter for mental health |
|---|---|
| Inflammation | May influence energy, mood, pain, cognition and immune signalling. |
| Blood sugar regulation | May affect anxiety, irritability, cravings, fatigue, sleep and emotional stability. |
| Gut-brain axis | May influence inflammation, neurotransmitter pathways, immune tone and stress response. |
| Mitochondrial function | May affect energy, repair capacity, brain fog, fatigue and cellular resilience. |
| Oxidative stress | May contribute to cellular strain, inflammation and impaired recovery. |
| Nutrient status | B vitamins, vitamin D, magnesium, zinc, iron and amino acids may influence mood and energy. |
| Cortisol rhythm | May affect sleep, stress tolerance, blood sugar and emotional regulation. |
| Medication metabolism | Pharmacogenomic insights may help explain medication sensitivity or poor tolerance. |
| Environmental load | Toxins, pollutants and endocrine disruptors may act as ongoing biological stressors. |
This does not mean every person needs every test. It means mental health care can be more personalised when we ask better biological questions.
What Goodsky Already Does Differently
Goodsky’s approach is already aligned with this broader shift in mental health care. We do not view depression, anxiety, PTSD or emotional dysregulation as purely psychological or purely biochemical. We look at the interaction between the person’s history, body, nervous system, environment, biology and current capacity for change.
Depending on the person and program, Goodsky may consider:
- Trauma history, ACEs and developmental stress
- Attachment patterns and relationship safety
- Intergenerational trauma and family system patterns
- Nervous system regulation and survival responses
- Sleep quality and circadian rhythm
- Blood sugar stability and metabolic health
- Gut health and microbiome markers
- Inflammation and oxidative stress
- Nutrient status and amino acid balance
- Mitochondrial and cellular energy markers
- Hormone and cortisol rhythm patterns
- Environmental load and detoxification capacity
- Pharmacogenomic information where relevant
- Psychological outcome measures and symptom tracking
Goodsky’s response is also layered. A person may need psychotherapy, but they may also need sleep repair, blood sugar support, gut-brain support, nervous system regulation, nutrition, movement, sunlight, breathwork, somatic therapy, supplementation, relational repair and lifestyle integration.
The Role of Psychotherapy and Somatic Work
Biological investigation does not replace psychotherapy. It supports it.
For many people, trauma is held not only in thoughts and memories, but also in posture, breath, muscle tension, gut function, sleep patterns, startle responses, emotional reactions and relationship templates. This is why Goodsky values bottom-up and trauma-informed approaches that help the body experience safety, not just intellectually understand it.
Somatic and relational therapies can help people notice body signals, develop regulation skills, process unresolved survival responses, restore boundaries, reduce shame and build a more stable internal sense of safety. In this model, therapy is not separate from biology. It is one of the ways the nervous system learns that the threat is over.
The Role of Nutrition and Metabolic Support
Nutrition is not presented at Goodsky as a moral issue or a perfectionistic rulebook. It is a support layer.
Food influences blood sugar, inflammation, gut microbes, neurotransmitter precursors, mitochondrial function, immune tone, hormones and energy availability. For someone recovering from trauma, depression or anxiety, nutrition can help reduce biological stress and support emotional steadiness.
Useful areas may include:
- Adequate protein intake
- Healthy fats for satiety and brain health
- Minimally processed foods
- Blood sugar-stabilising meals
- Micronutrient repletion where needed
- Gut-supportive foods where tolerated
- Reduced reliance on ultra-processed foods and refined sugars
The goal is not dietary perfection. The goal is to reduce unnecessary stress on the system.
The Future of Mental Health Care Is Layered
The future of mental health care is unlikely to be one single model. It will not be only serotonin, only trauma, only inflammation, only lifestyle, only medication or only mindset.
The more useful model is layered and personalised.
Goodsky’s Model Asks:
- What happened to this person?
- What did their nervous system have to adapt to?
- What has kept their body in survival mode?
- What biological stressors may be making recovery harder?
- What psychological, relational, metabolic and lifestyle layers need support?
- What would help this person move from defence into repair?
This is the value of integrating trauma-informed care with metabolic and inflammatory psychiatry. It allows us to see the person more completely.
Goodsky’s Position
Goodsky does not claim that every mental health condition is caused by inflammation, trauma, blood sugar instability or the Cell Danger Response. Mental health is complex, and every person deserves an individualised assessment.
Our position is more measured and, we believe, more useful:
That is why Goodsky looks at the whole person: history, attachment, trauma, nervous system regulation, sleep, gut health, blood sugar, inflammation, mitochondrial function, nutrition, hormones, environment, lifestyle and relationship.
The question is no longer simply, “Which neurotransmitter is out of balance?”
The better question may be:
Where to Start
If you are exploring a more whole-person approach to mental health, it may be helpful to begin by looking at the foundations: sleep, blood sugar, nutrition, gut health, stress physiology, trauma history, nervous system regulation and your current support system.
At Goodsky, these layers are brought together within structured residential programs and intensive outpatient care that combine trauma-informed support, functional health investigation, lifestyle change and coordinated care.
If you or a loved one are transitioning from acute care, you can also read our guide on what happens after a psychiatric hospital discharge.
Frequently Asked Questions
Can inflammation cause depression?
Research suggests neuroinflammation is a significant biological driver of depressive symptoms for many people. It can create a biological “sickness behavior” that mirrors clinical depression, causing fatigue, brain fog, and low mood.
What is the Cell Danger Response?
The Cell Danger Response (CDR) is a metabolic state where cells shift from normal energy production into a protective defense mode in response to a threat (like trauma, toxins, or chronic stress). If it stays activated too long, it can contribute to chronic fatigue and emotional dysregulation.
How does trauma affect the immune system?
Chronic threat exposure and unresolved trauma can keep the nervous system in a prolonged state of fight-or-flight. This elevates stress hormones like cortisol and increases systemic inflammatory markers, disrupting normal immune and gut-brain function.
Does blood sugar affect mental health?
Yes. Rapid spikes and crashes in blood sugar (reactive hypoglycemia) can be perceived by the brain as an internal threat, triggering the release of adrenaline and cortisol. This can lead to anxiety, irritability, and emotional volatility.
References and Further Reading
Dardani, C., Robinson, J. W., Jones, H. J., Rai, D., Stergiakouli, E., Grove, J., Gardner, R., McIntosh, A. M., Havdahl, A., Hemani, G., Davey Smith, G., Richardson, T. G., Gaunt, T. R., & Khandaker, G. M. (2025). Immunological drivers and potential novel drug targets for major psychiatric, neurodevelopmental, and neurodegenerative conditions. Molecular Psychiatry.
Naviaux, R. K. (2014). Metabolic features of the cell danger response. Mitochondrion, 16, 7–17.
Winfrey, O., & Perry, B. D. (2021). What Happened to You? Conversations on Trauma, Resilience, and Healing. Flatiron Books.
Felitti, V. J., Anda, R. F., Nordenberg, D., Williamson, D. F., Spitz, A. M., Edwards, V., Koss, M. P., & Marks, J. S. (1998). Relationship of childhood abuse and household dysfunction to many of the leading causes of death in adults. American Journal of Preventive Medicine, 14(4), 245–258.
Miller, A. H., & Raison, C. L. (2016). The role of inflammation in depression: From evolutionary imperative to modern treatment target. Nature Reviews Immunology, 16, 22–34.
Jacka, F. N., O’Neil, A., Opie, R., Itsiopoulos, C., Cotton, S., Mohebbi, M., et al. (2017). A randomised controlled trial of dietary improvement for adults with major depression: The SMILES trial. BMC Medicine, 15, 23.
Walker, M. (2017). Why We Sleep. Scribner.
Porges, S. W. (2011). The Polyvagal Theory: Neurophysiological Foundations of Emotions, Attachment, Communication, and Self-Regulation. W. W. Norton & Company.