1. Context
Chemical, biological, radiological, and nuclear incidents constitute some of the most formidable and multifaceted threats to public health, safety, and social stability in the modern era (1, 2). In this conceptual commentary, the term "CBRN events" is used throughout to refer collectively to such incidents, including both confirmed exposures and perceived or anticipated threats. Although existing research and preparedness frameworks have largely concentrated on technical and biomedical responses, such as detection, decontamination, and clinical management, these approaches insufficiently address the psychosocial and relational consequences that unfold in everyday life (3).
A defining characteristic of CBRN events is their invisibility, ambiguity, and delayed detectability, which fundamentally reshape how individuals interpret and respond to risk (2). Rather than producing immediate, visible disruption, these conditions generate persistent uncertainty that permeates routine interactions and decision-making processes (2). In this context, risk is no longer confined to external environments but becomes embedded within intimate spaces, including the home (4, 5).
As a conceptual commentary, this article shifts the analytical focus from individual-level psychological outcomes to the relational dynamics of family life under conditions of invisible threat. Specifically, it examines how core processes, such as caregiving, physical intimacy, trust, and shared meaning-making, are reconfigured when family members are simultaneously sources of support and potential vectors of harm. This duality introduces a fundamental tension between protection and connection that conventional CBRN frameworks rarely address (6, 7).
Building on insights from disaster psychology, pandemic research, and chronic caregiving literature, we develop a conceptual framework that explains how contamination anxiety, relational distancing, and narrative fragmentation interact to destabilize family systems (5, 8). Rather than reiterating general psychosocial impacts, the analysis traces specific mechanisms through which uncertainty translates into altered behaviors and weakened relational cohesion.
The structure of the article reflects this progression. Following an overview of the distinctive psychosocial features of CBRN events, we examine key relational mechanisms within families before situating these dynamics in culturally specific contexts. The discussion then translates these insights into practical implications for policy and practice, emphasizing the need for family-centered approaches to preparedness and recovery.
By foregrounding the family as a central unit of analysis, this commentary argues that the true measure of resilience in CBRN event contexts extends beyond physical survival to the preservation and restoration of relational life.
1.1. The Distinctive Psychosocial Challenge of CBRN Events
What distinguishes CBRN events from natural disasters or conventional trauma is their inherent uncertainty and invisibility. Exposure may not manifest immediately; individuals cannot reliably verify whether they or their loved ones have been contaminated. This ambiguity fosters what has been termed contamination anxiety, a state of persistent vigilance, suspicion, and fear of contagion or exposure, even in the absence of visible threat (9, 10). Consequently, the psychosocial effects are not merely secondary to physical harm; they may persist, intensify, or even outlast material remediation (4, 5).
For example, post-CBRN psychological responses often include distress, such as intrusive thoughts, sleep disturbance, and irritability; behavioral changes, such as avoidance of social interaction and excessive hygiene practices; and, in a subset of individuals, diagnosable psychiatric conditions, including posttraumatic stress disorder, depression, and somatization (11). Social and relational disruptions driven by fear, stigma, or resource disruption further compound the psychological burden.
Emergency responders and health systems recognize that managing the psychological fallout may be as critical as treating physical injuries. The manmade nature of many CBRN events magnifies distrust and moral outrage, raising questions of accountability, communication, and legitimacy. In this light, psychosocial crisis management guidelines have emerged, although often with limited empirical underpinning (5).
1.2. The Domestic Battlefield: Family as an Arena of Psychosocial Rupture
Within the broader social realm, families are the primary setting in which care, trust, touch, and shared narratives are cultivated. Under ordinary circumstances, families provide emotional anchorage, mutual support, and a buffer against external stressors. Under the strain of a CBRN event, however, this anchorage may fray.
When contamination uncertainty pervades, everyday acts of care, including preparing food, hugging, and physical closeness, may become fraught. Family members may begin to micro-assess whether a gesture might carry risk, prefer distancing over touch, or demand decontamination rituals before contact. Over time, the spontaneity of caring acts is replaced by ritualized, conditional, or withheld intimacy (4).
Ambiguity surrounding exposure fosters breakdowns in shared narratives: who touched what, who was exposed, and which environments are safe. In this vacuum, rumors, suspicion, or blame may infiltrate. Trust, which is foundational to family life, can erode when one member fears that others are unknowingly vectors or sources of contamination.
To manage internal risk, families may impose internal quarantines that segregate sleeping, eating, or shared spaces within the home. Such practices weaken the boundaries of "us" and reinforce emotional distance (4, 12). Simultaneously, conflicting roles may emerge: who monitors hygiene, who enforces distance, and who reconciles the emotional costs. In many cases, previously shared routines and rituals, including meals, gatherings, and touch, are curtailed or replaced by solitary substitutes.
Families already under pressure from external disruptions, including evacuation, displacement, resource scarcity, and medical triage, face compounded stress. The loss of external support networks further concentrates the emotional burden within the domestic microcosm. This concentrated burden parallels findings from studies of caregivers in other prolonged crisis settings, such as parents of children undergoing chemotherapy, who report severe anxiety, depression, financial strain, and social isolation (3).
Although these dynamics have been discussed in qualitative case reports and extrapolated models, the specific mechanisms through which CBRN stressors undermine intimate bonds remain underexplored in formal scholarship.
1.3. Situating the Gap: What Existing Literature Tells Us
A growing, but still nascent, body of literature addresses psychosocial care in CBRN event contexts. For instance, Gouweloos et al. systematically reviewed psychosocial care approaches to CBRN events and observed that, while general post-disaster psychosocial guidelines, including the European Network for Traumatic Stress and European consensus guidance, are largely applicable (6), CBRN-specific features, including risk communication, trust in authorities, and ambiguous exposure, require tailored strategies. Their review underscores the paucity of rigorous empirical evaluations in this area.
Moreover, mass decontamination guidance reviews, such as the review by Carter and Amlot, have highlighted that psychosocial dimensions, including privacy, communication strategies, and respect for vulnerable groups, are often underrepresented or inconsistently integrated into operational protocols (7). In short, although technical readiness is well documented, psychosocial readiness lags behind (5, 8).
The Psychosocial Crisis Management in CBRN Events framework likewise highlights training gaps, research gaps, and the need to couple technical response with human-centered planning. Furthermore, Lemyre and colleagues have proposed a psychosocial risk assessment and management framework to interface general disaster guidelines with CBRN-specific psychosocial stressors. Yet the application of these models to the domestic and familial domains remains minimal.
In practice, guidelines and expert consensus tend to center on community-level and organizational-level strategies, such as risk communication and responder training, while underemphasizing intrafamilial dynamics. This creates a blind spot: even if population-level mental health interventions are deployed, the fracturing of family intimacy may undermine resilience, recovery, and long-term psychosocial health.
1.4. The Relevance of the 12-Day War and the Iranian Context
When considering complex emergencies, such as war, hybrid threats, or prolonged geopolitical tension, the likelihood of CBRN use or threat becomes more salient. In this article, the reference to the "12-day war" is used illustratively to denote periods of heightened geopolitical tension, rather than to imply a confirmed CBRN event or documented exposure. The focus of this discussion is therefore on perceived or anticipated CBRN risks and their psychosocial consequences within family systems. In such contexts, the notion of invisible hazards, whether perceived or real, intersects with existing social, cultural, and familial norms of touch, care, and collective memory. The anticipation of contamination, even in the absence of verified exposure, may activate psychosocial mechanisms similar to those observed in actual CBRN events, such as contamination anxiety, hypervigilance, and relational distancing.
In Iran and similar cultural contexts, familial closeness, intergenerational support, physical affection, and collective rituals, including shared meals and hospitality, are deeply embedded in social life (4). Practices such as Nowruz gatherings, extended-family visits, and norms of hospitality, which emphasize physical presence, food sharing, and close interpersonal contact, may be particularly vulnerable to disruption under conditions of perceived contamination risk. For example, contamination anxiety may transform culturally valued behaviors, such as welcoming guests, embracing relatives, or communal dining, into sources of tension, avoidance, or moral dilemma. Furthermore, the prevalence of intergenerational co-residence in many Iranian households may intensify these dynamics, as concerns about protecting vulnerable family members, such as older adults, may reinforce internal distancing practices and role conflicts (13). In such settings, disruptions to touch, trust, or co-presence carry heightened symbolic and psychological weight. When a population already bears trauma, displacement, or insecurity, the introduction of contamination uncertainty creates a terrain in which familial bonds can be silently contested and remapped.
Moreover, the scarcity of region-specific psychosocial research on CBRN-related or war-related exposures in Iran or neighboring states underscores the need for context-sensitive, culturally attuned models. In such settings, policy frameworks often emphasize macro-level security and infrastructure but lack integration of family-centered psychosocial resilience.
1.5. Objectives and Scope of This Commentary
Consistent with the conceptual nature of this commentary, the present article seeks to elucidate the mechanisms through which CBRN events, or CBRN-threat contexts, may destabilize familial intimacy, trust, and narrative coherence, turning households into relational zones of caution and rupture.
It also seeks to synthesize cross-disciplinary insights from disaster psychology, crisis sociology, and psychosocial guidelines to propose a conceptual map of mediating and moderating pathways, such as contamination anxiety, role redefinition, communication ruptures, and ritual adaptation (4).
Finally, it aims to translate these insights into actionable recommendations for policymakers, emergency planners, and psychosocial practitioners to integrate family-centered psychosocial strategies into CBRN preparedness, response, and recovery schemas, and to stimulate future research by highlighting key gaps, especially empirical evaluation of intervention efficacy, ethnographic study of family dynamics after CBRN exposure, and culturally anchored models in non-Western settings.
In doing so, we argue that a holistic, humane conception of CBRN readiness must not only aim for survival and decontamination but also strive to reconstruct the relational substrate of care, trust, and belonging within families. The domestic sphere is not a passive recipient of crisis; it is an active terrain in which psychological resilience is either fortified or fractured.
2. Evidence Acquisition
This article is a conceptual commentary grounded in an interpretive narrative synthesis, rather than a systematic or scoping review. The aim is not to provide an exhaustive or reproducible synthesis of all available evidence but to develop a theoretically informed framework for understanding the psychosocial and relational consequences of CBRN events within family systems.
The analysis draws on selective, purposive sampling of literature from disaster psychology, crisis sociology, and psychosocial care guidelines. To inform the discussion, we conducted a targeted search of relevant literature using databases such as PubMed, Scopus, and Google Scholar. The search was limited to studies published between 2000 and 2025, in English, and primarily included peer-reviewed, conceptually relevant sources. Key search terms included "CBRN psychosocial impact," "family resilience and disaster," "contamination anxiety," and "intimacy in crisis."
Given the conceptual nature of this work, inclusion was guided by theoretical relevance rather than predefined eligibility criteria or formal quality appraisal procedures. Before developing this conceptual commentary, we conducted a systematic review on psychosocial support for citizens and frontline personnel in CBRN events. Using keywords such as "CBRNE," "psychosocial support," and related terms, we searched PubMed, Scopus, Embase, and Web of Science. This search yielded 14,365 articles, of which 40 were included in the final analysis after full-text screening. A content analysis of these 40 studies identified four core psychosocial support strategies in CBRN events: behavioral, cognitive, emotional, and spiritual. Notably, the family emerged as a central unit across all four strategies (4). Based on this finding, we then conducted a narrative review, drawing on additional searches in the same databases to examine the family-centered psychosocial consequences of CBRN events in greater depth. This multidisciplinary narrative synthesis informs the present conceptual commentary. Source selection was purposive, prioritizing foundational theories, empirical case studies, and recent reviews that illuminate the psychosocial dimensions of CBRN and analogous crises, such as pandemics and chronic caregiving (3, 14, 15). The synthesis was interpretive and integrative and was conducted through thematic grouping of the literature and conceptual mapping of key psychosocial mechanisms. This process enabled the identification of recurring patterns, such as contamination anxiety, relational distancing, and trust erosion, and their integration into a coherent explanatory framework.
The synthesis therefore aims to generate conceptual linkages and propose mechanisms, rather than to quantify effects or evaluate intervention efficacy. This approach enables the articulation of a family-centered psychosocial framework that can inform future empirical research and policy development in CBRN preparedness and response.
The analytical process involved thematic grouping and conceptual mapping of the reviewed literature, through which key relational mechanisms, such as contamination anxiety, relational distancing, caregiving disruption, and narrative fragmentation, were identified. These themes directly inform the structure of the main sections of the article.
3. Results
3.1. The Distinctive Psychosocial Terrain of CBRN Events
The following sections are organized around conceptual themes derived from the narrative synthesis. Each section represents a core relational mechanism identified through thematic analysis of the literature, illustrating how invisible CBRN-related threats systematically reshape family dynamics across multiple domains.
Unlike natural disasters, which manifest through visible destruction and finite boundaries, CBRN events unfold in a domain of invisibility and ambiguity (2). The intangibility of a chemical agent, radiological particle, or biological contaminant transforms ordinary spaces into suspect environments. The home, office, and school cease to be places of predictability and instead become potential vectors of harm. The disaster psychology literature underscores that uncertainty is a more potent driver of distress than observable loss because it erodes individuals’ ability to cognitively map threat boundaries (4). In this sense, a CBRN event colonizes the imagination: every surface may be tainted, every returning family member may embody risk, and every symptom, however benign, may signify contamination.
3.2. Protective Instincts Reconfigured: From Nurturing to Policing
Human caregiving behavior is evolutionarily oriented toward reducing distress through proximity, touch, and reassurance (16). Yet, in CBRN event contexts, this instinct is distorted by the logic of contamination control. Parents may assume quasi-clinical roles by enforcing decontamination rituals, establishing quarantine-like zones within the household, and limiting spontaneous contact. Empirical evidence from pandemic contexts, particularly COVID-19, demonstrates that infection-related fear and uncertainty substantially altered caregiving behaviors, often replacing emotional warmth with procedural caution and distancing (17). Pandemic psychology research, including COVID-19 studies, parallels this pattern: what begins as protective caution is often experienced by children and partners as conditional love or withdrawal. Similarly, studies of chronic caregiving under prolonged uncertainty, such as in pediatric oncology contexts, show that sustained stress and role overload can shift caregiving from emotionally attuned interaction toward task-oriented and controlling behaviors, thereby reinforcing relational strain. Over time, protection may be interpreted not as care but as policing (18). The family hearth is thus transformed into a micro-bureaucracy of risk management, in which the language of affection is subordinated to the grammar of protocols.
In such high-stress environments characterized by ambiguous threat, families may resort to maladaptive coping strategies. Research on caregivers in chronic high-stress settings, such as those caring for family members with mental disorders, shows a prevalent reliance on emotion-oriented or avoidance coping strategies rather than problem-focused approaches, which can exacerbate relational strain and reduce adaptive capacity (14).
3.3. The Silencing of Touch and Its Emotional Consequences
Touch is a primary sensory channel through which humans communicate safety and belonging (8). Neuroscientific studies demonstrate that physical affection downregulates stress hormones, reinforces attachment bonds, and cultivates resilience. When CBRN-related anxiety silences this language, family members must navigate distress without the soothing reinforcement of contact. This mechanism is empirically supported by studies conducted during the COVID-19 pandemic, in which reductions in physical intimacy were closely linked to increased psychological distress, particularly among couples and families experiencing prolonged uncertainty and fear of contagion (15). Evidence from past CBRN-related events, such as Chernobyl and Fukushima, further illustrates how fear of invisible contamination contributed to long-term avoidance behaviors, stigmatization, and disruption of close physical and social contact, thereby reinforcing emotional isolation (7). This erosion of physical intimacy, and its emotional consequences, is further supported by findings from other crises; for example, the COVID-19 pandemic was associated with a significant decline in female sexual function, linked directly to heightened anxiety, depression, and stress, factors similarly central to the CBRN experience (15). An embrace becomes a calculation; a kiss becomes a gamble. This physical suspension generates parallel emotional isolation: individuals internalize fear alone, constructing private narratives of dread. Such solitude, ironically nested within shared space, fractures the very intimacy it was meant to protect. Case studies of Chernobyl evacuees, sarin gas survivors, and COVID-19 families repeatedly highlight how the absence of touch amplifies the long-term sequelae of trauma (19, 20).
3.4. Fragmented Narratives and the Loss of "We"
Families cope with adversity through shared storytelling, framing events within a narrative of togetherness (12, 21). In earthquakes or floods, the refrain is often “we survived.” In CBRN events, however, the shared narrative may collapse under suspicion. Each member can come to occupy a private ontology of risk: who is clean, who is exposed, and who is dangerous. Conversations shift from humor and planning to surveillance of symptoms and hygiene. The plural “we” dissolves into multiple solitary “I” positions. Insights from pandemic research and chronic caregiving studies suggest that prolonged uncertainty, anxiety, and role strain disrupt shared meaning-making processes within families, leading to communication breakdowns and erosion of collective identity (15). In non-Western and collectivist cultural contexts, such as Iran, where family identity is deeply embedded in shared rituals, co-presence, and interdependence, this fragmentation may be even more psychologically disruptive and socially consequential. This fragmentation not only weakens immediate resilience but also transmits intergenerational pessimism.
The sustained psychological distress and relational fragmentation described here parallel the experiences of family caregivers in oncology settings, where prolonged uncertainty and role strain can similarly undermine shared family identity and communication (3). Children raised in households in which intimacy is conditional may inherit a worldview dominated by mistrust and hypervigilance.
3.5. From Household to Society: Ripple Effects of Domestic Erosion
The corrosion of family intimacy does not remain confined to private life. Families are the building blocks of social cohesion; when bonds fracture at home, community solidarity weakens. Research on collective trauma demonstrates that societies fractured at the domestic level exhibit reduced civic trust, weakened participation in communal recovery, and heightened susceptibility to misinformation. In contexts in which state legitimacy is contested, the erosion of familial trust can cascade into broader crises of social capital, complicating recovery long after the toxic agents have dissipated (22, 23).
3.6. Implications for Preparedness and Response
This analysis suggests that traditional CBRN preparedness, centered on detection technologies, decontamination, and medical countermeasures, is insufficient if psychosocial repair is neglected. An effective framework must integrate family-centered psychosocial support, including psychological first aid tailored to household dynamics and interventions addressing common caregiver challenges, such as anxiety, depression, and coping skill deficits. This imperative is underscored by evidence showing that mental health significantly affects core relational functions, even in non-CBRN events, highlighting the need to integrate such support into all-hazards planning (3, 14, 15).
Responders should be trained to identify signs of familial distress, not only physical symptoms. Communication strategies should avoid amplifying fear and should instead sustain shared agency, for example, by emphasizing that “we are protecting each other” rather than fostering suspicion. Long-term mental health programs should address the intergenerational transmission of pessimism and relational distrust. Cultural sensitivity is also essential, recognizing that in many societies, including Iran, family intimacy is a central cultural axis, making its erosion uniquely consequential.
3.7. Toward a Human-Centric Paradigm
Ultimately, defending society against CBRN events requires re-centering the human within the response. Survival is not enough. True resilience will be measured not merely by the absence of contamination but by the reappearance of laughter at the dinner table, the unhesitating embrace of parent and child, and the restoration of trust in shared spaces. Preparedness frameworks must therefore expand their scope, from saving lives to saving relationships and from restoring infrastructure to restoring intimacy. Only then can recovery be understood not only as a biological fact but also as a human achievement.
3.8. Implications for Practice and Policy
The conceptual framework developed in this commentary highlights the need to translate psychosocial insights into operational strategies across the preparedness, response, and recovery phases of CBRN-related crises. The following recommendations outline actionable directions for key stakeholders.
Emergency planners and preparedness systems should integrate family-centered scenarios into CBRN preparedness planning, including guidance on maintaining safe caregiving practices, intra-household distancing, and communication under contamination uncertainty. They should also develop practical toolkits for households, such as simple protocols for preserving emotional connection, including safe touch alternatives and structured family routines, alongside decontamination measures. Psychosocial indicators should be incorporated into preparedness assessments so that family cohesion and relational resilience are treated as core components of readiness.
Mental health and psychosocial support practitioners should design and implement brief, scalable, family-based interventions targeting contamination anxiety, communication breakdown, and role conflict within households. Frontline providers should be trained to recognize relational distress signals, such as withdrawal of affection, excessive control behaviors, or intrafamily mistrust. Existing psychosocial support models, including psychological first aid, should be adapted to explicitly include relational and family-system components rather than focusing solely on individuals.
Risk communication and public health messaging teams should develop communication strategies that preserve relational cohesion, framing protective behaviors as collective acts of care, such as “we protect each other,” rather than as sources of suspicion. Messaging should avoid unintentionally amplifying fear of close others, particularly in contexts of invisible threat, where ambiguity already fuels mistrust. Communication should also be tailored to cultural contexts, recognizing that practices such as shared meals, caregiving rituals, and intergenerational contact hold deep social meaning and must be addressed sensitively.
Policy and long-term recovery planning should embed family-centered psychosocial recovery programs into post-crisis planning, including support for rebuilding trust, intimacy, and shared routines. Longitudinal research and monitoring systems should track the long-term relational impacts of CBRN-related fear and uncertainty. Culturally grounded intervention models should also be promoted, particularly in non-Western contexts, where family structures and meanings of intimacy differ substantially.
Taken together, these measures move beyond abstract recognition of psychosocial harm and provide a practical foundation for integrating family-centered resilience into CBRN policy and practice.
4. Conclusions
The psychosocial legacy of CBRN events is neither incidental nor peripheral; it is central to how individuals, families, and societies experience and recover from crisis. By weaponizing invisibility and ambiguity, these events corrode the foundations of intimacy and trust within the household. The home, ordinarily a nucleus of resilience, is recast as a site of suspicion, where love is refracted through the lens of risk and where physical touch, the most elemental human reassurance, is silenced. The erosion of shared narratives and the emergence of individualized ontologies of danger transform families from engines of solidarity into fragmented assemblages of anxious individuals.
This commentary argues that, unless emergency management paradigms are reoriented toward psychosocial as well as biomedical dimensions, recovery will remain incomplete. True preparedness must anticipate not only the physical harms of exposure but also the invisible aftershocks that dismantle relational bonds. Restoring society after CBRN trauma therefore requires interventions that rebuild intimacy, cultivate trust, and preserve families’ capacity for joy. This includes equipping responders with psychosocial competencies, crafting communication that sustains cohesion rather than amplifies fear, and designing long-term, family-centered support systems that protect relational integrity across generations.
The ultimate measure of resilience in the wake of CBRN events is not the absence of contaminants in the air or water but the re-emergence of laughter around the dinner table, the unhesitating embrace between loved ones, and the reconstitution of a collective "we." Survival, in its fullest sense, is the preservation of humanity. Only when recovery restores both life and love can society claim to have truly withstood the silent violence of CBRN catastrophe.
