The psychological wounds of war are devastating, but they are only half of the story. Beneath the surface of post-traumatic stress disorder (PTSD), depression, and anxiety, conflict survivors carry a hidden burden that is measurable in their blood pressure, their metabolism, their chronic pain, and even their cellular aging. This article examines the profound physical health consequences of conflict trauma, mapping the pathways from psychological suffering to cardiovascular disease, metabolic disorders, autoimmune conditions, chronic pain syndromes, and reduced life expectancy.
Table of Contents
The mind-body connection in conflict trauma
Trauma is not merely psychological—it is physiological. Exposure to conflict-related violence triggers persistent dysregulation of the body’s stress-sensitive biological systems, including the hypothalamic-pituitary-adrenal (HPA) axis, the sympathetic nervous system, and the immune system. These alterations, detectable through biomarkers such as heart rate variability (HRV), are associated with long-term physical health morbidity and mortality. In a study of South Sudanese adults, the majority exhibited unexpected patterns of parasympathetic nervous system activity—a physiological signature indicating serious long-term health risk. Importantly, traumatic events are associated with adverse downstream effects on physical health independent of PTSD and other mental disorders, meaning the body suffers regardless of whether formal psychiatric criteria are met.
Cardiovascular disease: the wounded heart
Perhaps the most extensively documented physical consequence of conflict trauma is the dramatically elevated risk of cardiovascular disease (CVD). A 2025 systematic review and meta-analysis confirmed a significant, clinically meaningful, bidirectional relationship between PTSD and CVD. The link is so robust that researchers now argue for integrating trauma-informed approaches into cardiovascular care and stress management into psychiatric treatment. The connection operates through multiple pathways—chronic inflammation, elevated blood pressure, dysregulated autonomic function, and health-risk behaviours—forming a vicious cycle where trauma damages the heart and heart disease exacerbates trauma.
Ongoing research on Ukrainian female refugees is testing the hypothesis that war-induced trauma exposure and psychological stress directly contribute to blood pressure elevation and progression of CVD. The study’s protocol includes offering psychological therapies to subjects with confirmed PTSD, with periodic reassessment of the impact of PTSD symptom reduction on hypertension and cardiovascular health. Early evidence suggests that man-made trauma exposure and PTSD may be more tightly linked to hypertension than traditionally recognised risk factors.
Metabolic and endocrine disorders
Conflict trauma leaves a lasting mark on metabolism and endocrine function. The concept of allostatic load—a multi-system indicator of maladaptive stress responses—provides a unifying framework. Among individuals with PTSD, cumulative trauma exposure is associated with higher allostatic load and elevated CVD risk. Notably, surviving trauma with resilience may paradoxically impose biological strain that could have long-term harmful effects. Resilience is protective in healthy individuals but may be metabolically costly when maintained in the context of active PTSD.
Emerging evidence reveals a bidirectional relationship between PTSD and type 2 diabetes (T2D), with conflict-affected populations showing heightened vulnerability. War-displaced individuals face compounded metabolic and mental health burdens, as PTSD and T2D share complex, overlapping pathophysiological mechanisms. Childhood trauma has similarly been linked through PTSD to elevated allostatic load in adulthood, suggesting that early-life adversities programme the body for lifelong metabolic dysregulation.
Chronic pain and central sensitisation
Chronic pain is one of the most pervasive yet under-recognised physical consequences of conflict trauma. In a study of Chilean victims of political violence, 69.23% of survivors had chronic musculoskeletal pain, and 60% of those showed high-level central sensitisation-related symptoms—a condition where the nervous system becomes persistently wound up, amplifying pain signals. Females were disproportionately affected, with 76.85% of women in the sample reporting chronic musculoskeletal pain. A study of Maoist combatants in Nepal found a 27.7% prevalence of chronic pain syndrome following bullet and shrapnel wounds, years after active fighting had ceased. In Kosovo, nearly 95% of torture survivors experienced pain in the preceding two weeks, and half were taking medication for depression and anxiety.
Gastrointestinal disorders and the brain-gut axis
Trauma profoundly affects digestive health through the brain-gut axis. The American Society for Gastrointestinal Endoscopy (ASGE) notes that trauma alters pain perception and stress responses, leading to visceral hypersensitivity—a key driver of functional gastrointestinal disorders. Individuals with irritable bowel syndrome (IBS) exhibit markedly higher prevalence of complex post-traumatic stress symptoms and childhood adversity compared to healthy individuals. Inflammatory bowel disease (IBD) and IBS are both known to be exacerbated by traumatic life experiences, with gastrointestinal patients reporting significantly more cumulative trauma and passive coping strategies than controls.
Respiratory disorders
The lungs are not immune to the effects of psychological trauma. A 2026 EAACI task force report analysing war-related PTSD found that trauma exposure was associated with an approximately 125% increased risk for adverse asthma outcomes—an odds ratio of 2.25. Depression was also independently linked to asthma risk, but PTSD showed the strongest association. Among World Trade Center rescue workers, 30% of those with asthma had comorbid PTSD, and PTSD was associated with significantly worse asthma control, increased healthcare utilisation, and poorer quality of life.
Autoimmune disorders
PTSD is associated with endocrine and immune abnormalities that appear to increase the risk of autoimmune disorders. A study of Iraq and Afghanistan veterans with PTSD found that PTSD was associated with a significantly higher adjusted relative risk for autoimmune disorders such as rheumatoid arthritis, multiple sclerosis, and Graves’ disease. Vietnam War veterans with chronic PTSD were three times more likely to develop an autoimmune disease than veterans without PTSD. The relationship is mechanistically plausible: trauma-induced dysregulation of the HPA axis and persistent low-grade inflammation can break immune tolerance and trigger self-directed immune attacks.
Neurological disorders and traumatic brain injury
Survivors of conflict-related traumatic brain injury (TBI) often develop chronic neurological, neurocognitive, and psychosocial deficits that profoundly affect quality of life. In veterans of the Afghanistan and Iraq wars, post-traumatic epilepsy has emerged as a significant concern, with seizures appearing anywhere from three months to a decade after the initial injury. The condition may be under-diagnosed or misdiagnosed, and post-traumatic epilepsy can act as a “second-hit” insult that worsens chronic behavioural outcomes across domains of emotional, cognitive, and psychosocial functioning.
Perinatal and intergenerational physical consequences
Conflict trauma affects not only those directly exposed but also succeeding generations—through both epigenetic mechanisms and direct in-utero exposure. A 2025 study of three generations of Syrian refugees identified differentially methylated DNA regions associated with germline, prenatal, and direct exposure to violence, suggesting a common epigenetic response to trauma that can be transmitted across generations. Children exposed to prenatal violence exhibit accelerated epigenetic aging, which may have long-term health consequences including increased vulnerability to chronic disease. These epigenetic alterations could influence stress response, cognitive development, and disease susceptibility, with some children displaying increased aggression, distrust, or difficulties in social integration—not as a matter of personal choice, but as a consequence of the physiological imprint of war.
Allostatic load and cumulative trauma
The cumulative burden of exposure to multiple traumatic events—rather than the severity of any single trauma—appears to be the key driver of physical illness following conflict. The allostatic load model provides a unified explanation: each traumatic event adds physiological wear and tear, dysregulating neuroendocrine, metabolic, cardiovascular, and inflammatory systems. Cumulative trauma exposure may independently increase the likelihood of high allostatic load and CVD risk in PTSD, even after accounting for resilience factors.
There is a significant interaction between cumulative trauma and resilience on allostatic load, with a stronger association between cumulative trauma and allostatic load in those with higher resilience. The interpretation is sobering: remaining resilient while experiencing PTSD symptoms may impose biological strain that could have long-term harmful effects.
Mortality and life expectancy
The physical consequences of conflict trauma translate directly into reduced longevity. Childhood exposure to serious family conflict is associated with a 54% increased all-cause mortality risk in older adults, and childhood abuse or maltreatment with a 34% increased risk. Across nations, the most violent countries have the lowest life expectancy—with an estimated gap of approximately 14 years in remaining life expectancy compared to peaceful settings. Violence creates a double burden on longevity: it both shortens individual lives and makes the length of life less predictable. In conflict-affected regions, trauma patients face mortality rates exceeding 28% from treatable injuries due to inadequate trauma care systems.
Somatic syndromes and medically unexplained symptoms
Throughout military history, clusters of medically unexplained symptoms have emerged following armed conflicts—from Civil War-era “irritable heart” to World War I shell shock, Vietnam War syndrome, and contemporary Gulf War illness. These functional somatic syndromes are defined by the presence of multiple, clinically significant somatic symptoms without identifiable organic cause.
Gulf War illness, which affects approximately 31% of 1990–1991 Gulf War veterans who meet CDC criteria for severe illness and 49% who report fair or poor health, is characterised by multiple bodily complaints, somatic preoccupation, and distress. The magnitude of somatisation correlates robustly with the presence and severity of post-traumatic stress symptoms, underscoring that medically unexplained symptoms following conflict are not imagined but rather represent real physical suffering driven by psychological trauma.
Conclusion – Physical Health Consequences
The physical health consequences of conflict trauma are extensive, well-documented, and life-shortening. From cardiovascular disease, metabolic disorders, chronic pain, gastrointestinal dysfunction, respiratory illness, autoimmune diseases, neurological deficits, epigenetic alterations, and elevated allostatic load to reduced life expectancy and functional somatic syndromes—the evidence is clear: psychological wounds leave lasting marks on the body.
The implications for clinical care are profound. Trauma-informed medical practice is not optional; it is essential. Screening for trauma history should be routine not just in mental health settings but in cardiology, gastroenterology, rheumatology, pain management, and primary care. Integrated interventions that address both mental and physical health are needed to interrupt the pathological cycle linking trauma to chronic disease. The hidden injury of war is not hidden at all—it is written on every major organ system in the body.
Explore more insights on trauma, recovery, and mental health at Centre for Elites:
Neurobiology of Trauma and Stress Responses — understanding the brain’s survival circuits and how trauma reshapes nervous system function — and Common Mental Health Conditions Following Conflict Trauma — a comprehensive guide to PTSD, depression, anxiety, and their comorbidities.
For authoritative information, consult the World Health Organization’s mental health in emergencies page, the International Society for Traumatic Stress Studies, and the VA National Center for PTSD’s section on chronic pain and PTSD.
Explore videos related to this topic on: Decoly Psych – Mental Health & Mindset
Watch a full Playlist here: Counselling and Rehabilitation of Conflict Victims
