Cortisol function among early school-aged homeless children

Prevalence of youth experiencing homelessness and its association with suicidal thoughts and behaviors: Findings from a population-based study

Although various studies have examined factors associated with suicidal behaviors among youth, few studies have investigated the association between youth experiencing homelessness (YEH) and suicidal thoughts and behaviors (STBs) using a large nationally representative sample. The objectives of this study were to investigate prevalence of YEH and its association with STBs. Data for this study came from the 2021 Youth Risk Behavior Survey. An analytic sample of 17,033 youth aged 14-18 (51.7 % male) was analyzed using binary logistic regression. Of the 17,033 youth examined, 3 % experienced homelessness during the past 30 days, 21.3 % experienced suicidal ideation, 17.3 % made a suicide plan, and 10.9 % attempted suicide during the past 12 months. Controlling for demographic characteristics and feeling sad or hopeless, YEH was associated with 2.48 times higher odds of experiencing suicidal ideation (AOR=2.48, p<.001), 2.46 times higher odds of making a suicide plan (AOR=2.46, p<.001), and 4.38 times higher odds of making a suicide attempt (AOR=4.38, p<.001). The findings of this study highlight the importance of identifying youth who are at risk of experiencing homelessness to ensure early interventions are put in place to prevent suicidal behaviors.

The phenotypic associations and gene-environment underpinnings of socioeconomic status and diurnal cortisol secretion in adolescence

While converging evidence suggests that both environmental and genetic factors underlie variations in diurnal cortisol, the extent to which these sources of influence vary according to socioeconomic status (SES) has seldom been investigated, particularly in adolescence. To investigate whether a distinct genetic and environmental contribution to youth's diurnal cortisol secretion emerges according to family SES and whether the timing of these experiences matters. Participants were 592 twin pairs, who mostly came from middle-income and intact families and for whom SES was measured in childhood and adolescence. Diurnal cortisol was assessed at age 14 at awakening, 30 min later, in the afternoon and evening over four nonconsecutive days. SES-cortisol phenotypic associations were specific to the adolescence period. Specifically, higher awakening cortisol levels were detected in wealthier backgrounds, whereas higher cortisol awakening response (CAR) and diurnal changes were present at both ends of the SES continuum. Moreover, smaller genetic contributions emerged for awakening cortisol in youth from poorer compared to wealthier backgrounds. The results suggest that the relative contribution of inherited factors to awakening cortisol secretion may be enhanced or suppressed depending on the socio-family context, which may help to decipher the mechanisms underlying later adjustment.

Is economic hardship associated with young children's cortisol levels?

Economic hardship during childhood has been linked to poor physical and mental health. This study examines cross-sectional and longitudinal associations of a summed economic hardship score of poverty, food insecurity, and financial hardship with hair cortisol in young children. Data from 24-month (Time 1, mean age 5 years) and 36-month (Time 2, mean age 6 years) follow-up from the NET-Works obesity prevention trial (NET-Works, NCT0166891) were used. Hair cortisol measures obtained at each time point were log-transformed and regressed on economic hardship at Time 1 and a cumulative economic hardship from Time 1 to Time 2, using generalized linear regressions. All models were adjusted for child age, sex, race/ethnicity, and intervention (prevention vs. control) arm. The final analytic sample sizes ranged from 248 to 287. Longitudinal analyses indicated that for every 1-unit higher economic hardship score at Time 1, hair cortisol at Time 2 follow-up was on average 0.07 log-picograms per milligram (pg/mg) higher (95% confidence interval [CI]: 0.01, 0.13). For every 1-unit increase in the cumulative economic hardship score between Time 1 and 2, there was a 0.04 log-pg/mg (95% CI: 0.00, 0.07) average higher level of hair cortisol at Time 2 follow-up. Results show suggestive but limited evidence for an association between economic hardship and cortisol in young children.

The differential calibration of the HPA axis as a function of trauma versus adversity: A systematic review and p-curve meta-analyses

Although there is an abundance of evidence linking the function of the hypothalamic-pituitary-adrenal (HPA) axis to adverse early-life experiences, the precise nature of the association remains unclear. Some evidence suggests early-life adversity leads to cortisol hyper-reactivity, while other evidence suggests adversity leads to cortisol hypo-reactivity. Here, we distinguish between trauma and adversity, and use p-curves to interrogate the conflicting literature. In Study 1, trauma was operationalized according to DSM-5 criteria; the p-curve analysis included 68 articles and revealed that the literature reporting associations between trauma and blunted cortisol reactivity contains evidential value. Study 2 examined the relationship between adversity and cortisol reactivity. Thirty articles were included in the analysis, and p-curve demonstrated that adversity is related to heightened cortisol reactivity. These results support an inverted U-shaped function relating severity of adversity and cortisol reactivity, and underscore the importance of distinguishing between "trauma" and "adversity".

Homelessness and self-rated health: evidence from a national survey of homeless people in Spain

BACKGROUND

Internationally, acute homelessness is commonly associated with complex health and social care needs. While homelessness can be understood as an outcome of structural housing exclusion requiring housing led solutions, the health care issues faced by homeless people equally require attention. A substantive evidence base on the health needs of homeless people exists, but relatively little is known about what influences the self-rated health of homeless people. This article presents new evidence on whether drug use (alcohol consumption, ever having used drugs), health variables (visiting a hospital once in the last year, visiting the doctor in the last month, having a health card, sleeping difficulties, and having a disabling impairment) and sociodemographic characteristics are significantly associated with Self-Rated Health (SRH) among Spanish homeless people.

METHOD

The approach applies secondary analysis to cross-sectional data from a sample of 2437 homeless adults in Spain (83.8% were male). Multinomial logistic regression modelling was used to analyse the relationships between drug use, other health variables and SRH.

RESULTS

Being male, an abstainer, having a health card and being in the youngest age groups were significant factors associated with perceived good health. On the other hand, ever having used drugs, having been a night in hospital, having gone to the doctor in the last month, having sleeping difficulties, having a disabling impairment and being in the older age group were all significant risk factors associated with perceived poor health.

CONCLUSIONS

These results help to improve understanding of the key factors that influence the SRH among homeless people. The findings can contribute to development and delivery of preventive policies, suggesting that interventions to reduce drug consumption and ensure access to a health card/health services, as well as enhancing services for older, female and disabled homeless people are all measures which could improve health and well-being for those who face homelessness. Effective housing interventions (e.g. Housing First or Permanent Supported Housing programmes) are equally important to underpin the effectiveness of measures to improve the self-rated health of homeless people.

The relationship between cognitive enrichment and cognitive control: A systematic investigation of environmental influences on development through socioeconomic status

We measured the impact of socioeconomic status (SES) on cognitive processes. We examined cognitive control, specifically working memory (WM), in a sample of N = 141 7- to 17-year-olds using rule-guided behavior tasks. Our hypothesis is based on computational modeling data that suggest that the development of flexible cognitive control requires variable experiences in which to implement rule-guided action. We found that not all experiences that correlated with SES in our sample impacted task performance, and not all experiential variables that impacted performance were associated with SES. Of the experiential variables associated with task performance, only cognitive enrichment opportunities worked indirectly through SES to affect WM as tested with rule-guided behavior tasks. We discuss the data in the context of necessary precision in SES research.

Health and Self-Regulation among School-Age Children Experiencing Family Homelessness

Children in homeless families have high levels of adversity and are at risk for behavior problems and chronic health conditions, however little is known about the relationship between cognitive-emotional self-regulation and health among school-aged homeless children. Children (n = 86; mean age 10.5) living in shelters were assessed for health, family stress/adversity, emotional-behavioral regulation, nonverbal intellectual abilities, and executive function. Vision problems were the most prevalent health condition, followed by chronic respiratory conditions. Cumulative risk, child executive function, and self-regulation problems in children were uniquely related to child physical health. Homeless children experience problems with cognitive, emotional, and behavioral regulation as well as physical health, occurring in a context of high psychosocial risk. Several aspects of children’s self-regulation predict physical health in 9- to 11-year-old homeless children. Health promotion efforts in homeless families should address individual differences in children’s self-regulation as a resilience factor.

Distinctive Mechanisms of Adversity and Socioeconomic Inequality in Child Development: A Review and Recommendations for Evidence-Based Policy

This review proposes separate and distinct biological mechanisms for the effects of adversity, more commonly experienced in poverty, and socioeconomic status (SES) on child development. Adversity affects brain and cognitive development through the biological stress response, which confers risk for pathology. Critically, we argue that a different mechanism, enrichment, shapes differences in brain and cognitive development across the SES spectrum. Distinguishing between adversity and SES allows for precise, evidence-based policy recommendations. We offer recommendations designed to ensure equity in children's experiences to help narrow the achievement gap and promote intergenerational mobility.

Consequences of early adverse rearing experience(EARE) on development: insights from non-human primate studies

Early rearing experiences are important in one's whole life, whereas early adverse rearing experience(EARE) is usually related to various physical and mental disorders in later life. Although there were many studies on human and animals, regarding the effect of EARE on brain development, neuroendocrine systems, as well as the consequential mental disorders and behavioral abnormalities, the underlying mechanisms remain unclear. Due to the close genetic relationship and similarity in social organizations with humans, non-human primate(NHP) studies were performed for over 60 years. Various EARE models were developed to disrupt the early normal interactions between infants and mothers or peers. Those studies provided important insights of EARE induced effects on the physiological and behavioral systems of NHPs across life span, such as social behaviors(including disturbance behavior, social deficiency, sexual behavior, etc), learning and memory ability, brain structural and functional developments(including influences on neurons and glia cells, neuroendocrine systems, e.g., hypothalamic-pituitary-adrenal(HPA) axis, etc). In this review, the effects of EARE and the underlying epigenetic mechanisms were comprehensively summarized and the possibility of rehabilitation was discussed.

Child anxiety symptoms related to longitudinal cortisol trajectories and acute stress responses: evidence of developmental stress sensitization

Cross-sectional research suggests that individuals at risk for internalizing disorders show differential activation levels and/or dynamics of stress-sensitive physiological systems, possibly reflecting a process of stress sensitization. However, there is little longitudinal research to clarify how the development of these systems over time relates to activation during acute stress, and how aspects of such activation map onto internalizing symptoms. We investigated children's (n = 107) diurnal hypothalamic-pituitary-adrenal activity via salivary cortisol (morning and evening levels) across 29 assessments spanning 6+ years, and related longitudinal patterns to acute stress responses at the end of this period (age 9-10). Associations with child psychiatric symptoms at age 10 were also examined to determine internalizing risk profiles. Increasing morning cortisol levels across assessments predicted less of a cortisol decline following interpersonal stress at age 9, and higher cortisol levels during performance stress at age 10. These same profiles of high and/or sustained cortisol elevation during psychosocial stress were associated with child anxiety symptoms. Results suggest developmental sensitization to stress-reflected in rising morning cortisol and eventual hyperactivation during acute stress exposure-may distinguish children at risk for internalizing disorders.

Adversity and children experiencing family homelessness: Implications for health

This study tests links between adversity and health problems among children in family emergency housing. Children who experience family homelessness are at risk to also experience high levels of stress, health problems, and need for pediatric care. Understanding the connection between stress and health holds the potential to reduce persistent health disparities. Analyses tested whether experiencing a greater number of stressful life events during the early years of life was related to worse health conditions, emergency health care utilization, and hospitalizations. Parents noted children's experience of negative stressful life events, health problems, emergency room (ER) use, and hospitalization. Two cohorts of kindergarten-aged children staying in emergency family housing participated in the study in 2006-07 (n = 104) and in 2008-09 (n = 138), with the results examined separately. In both cohorts, more health problems were acknowledged for children exposed to more negative stressful life events. Stressful life events were not related to ER use but did relate to hospitalization for the 2006-07 cohort. Results affirm links between stress in early childhood and health problems among children living in emergency housing. Findings are consistent with the hypothesis that adversity in early childhood contributes to income and racial disparities in health.

Measuring the development of inhibitory control: The challenge of heterotypic continuity

Inhibitory control is thought to demonstrate heterotypic continuity, in other words, continuity in its purpose or function but changes in its behavioral manifestation over time. This creates major methodological challenges for studying the development of inhibitory control in childhood including construct validity, developmental appropriateness and sensitivity of measures, and longitudinal factorial invariance. We meta-analyzed 198 studies using measures of inhibitory control, a key aspect of self-regulation, to estimate age ranges of usefulness for each measure. The inhibitory control measures showed limited age ranges of usefulness owing to ceiling/floor effects. Tasks were useful, on average, for a developmental span of less than 3 years. This suggests that measuring inhibitory control over longer spans of development may require use of different measures at different time points, seeking to measure heterotypic continuity. We suggest ways to study the development of inhibitory control, with overlapping measurement in a structural equation modeling framework and tests of longitudinal factorial or measurement invariance. However, as valuable as this would be for the area, we also point out that establishing longitudinal factorial invariance is neither sufficient nor necessary for examining developmental change. Any study of developmental change should be guided by theory and construct validity, aiming toward a better empirical and theoretical approach to the selection and combination of measures.

Parental Incarceration as a Risk Factor for Children in Homeless Families

The current study aimed to describe the prevalence of children of incarcerated parents (COIP) in a sample of homeless/highly mobile children, examine the relationship between parental incarceration and other risk factors, and investigate the effect of parental incarceration on child academic and mental health outcomes. The authors compared COIP (n = 45) to children whose parents were never incarcerated (n = 93) within a sample of 138, 4- to 7-year-old ethnically diverse children residing in emergency homeless shelters. Children's caregivers provided information about children's history of parental incarceration and other family experiences. Children's teachers reported academic and mental health outcomes in the subsequent school year. Compared to children with no history of parental incarceration, COIP experienced more negative life events. Regression models revealed that a history of parental incarceration was a significant predictor of teacher-reported internalizing problems. These results have implications for the identification and treatment of the highest risk homeless/highly mobile children.

Tracing Differential Pathways of Risk: Associations Among Family Adversity, Cortisol, and Cognitive Functioning in Childhood

Guided by family risk and allostasis theoretical frameworks, the present study utilized a prospective longitudinal design to examine associations among family risk experiences, basal cortisol patterns, and cognitive functioning in children. The sample included 201 low-income children living within a midsize city in the Northeastern United States. Children were assessed at ages 2, 3, and 4 years. Growth-mixture modeling analyses revealed three basal cortisol patterns (elevated, moderate, low) and these remained relatively stable across time. Exposure to greater levels of family instability and maternal unresponsiveness predicted elevated and low cortisol patterns, which were associated with lower child cognitive functioning at age 4. Findings have implications for family risk processes that may underlie risk-related disparities in child cognitive outcomes.

Income, cumulative risk, and longitudinal profiles of hypothalamic-pituitary-adrenal axis activity in preschool-age children

Environmental risk predicts disrupted basal cortisol levels in preschool children. However, little is known about the stability or variability of diurnal cortisol morning levels or slope patterns over time in young children. This study used latent profile analysis to identify patterns of the hypothalamic-pituitary-adrenal axis activity during the preschool period. Using a community sample (N = 306), this study measured income, cumulative risk, and children's diurnal cortisol (morning level and slope) four times across 2.5 years, starting when children were 36 months old. Latent profile analysis profiles indicated that there were predominantly stable patterns of diurnal cortisol level and slope over time and that these patterns were predicted by income and cumulative risk. In addition, there were curvilinear relations of income and cumulative risk to profiles of low morning cortisol level and flattened diurnal slope across time, suggesting that both lower and higher levels of income and cumulative risk were associated with a stress-sensitive physiological system. Overall, this study provides initial evidence for the role of environmental risk in predicting lower, flattened basal cortisol patterns that remain stable over time.

Self-Regulation and Economic Stress in Children of Hispanic Immigrants and Their Peers: Better Regulation at a Cost?

RESEARCH FINDINGS

Although there is a well-established relationship between economic stress and children's self-regulation, few studies have examined this relationship in children of Hispanic immigrants (COHIs), a rapidly growing population. In a sample of preschool children (N = 165), we examined whether economic stress predicted teacher evaluations of children's self-regulation, whether economic stress predicted children's physiological reactivity (via cortisol levels), and whether economic stress had a similar effect on self-regulation and children's cortisol for COHI versus nonimmigrant children. Greater economic stress was associated with poorer child self-regulation and heightened physiological reactivity across a challenging classroom task for the sample as a whole. However, when we examined children by group, greater economic stress was associated with poorer teacher-reported self-regulation for nonimmigrant children only. In contrast, greater economic stress was related to greater cortisol reactivity across a challenge task for COHIs but not for nonimmigrants.

PRACTICE OR POLICY

Results demonstrate the importance of considering physiological indices of self-regulation (heightened stress physiology), in addition to traditional external indices (teacher report), when assessing self-regulation or risk more generally among preschool samples that are diverse in terms of ethnicity, economic risk, and parents' nativity.

Factors related to the cortisol awakening response of children working on the streets and siblings, before and after 2 years of a psychosocial intervention

The study objective was to observe the cortisol awakening response (CAR) pattern before and after a psychosocial intervention with children from dysfunctional families who had at least one child working on the streets, and to verify factors related to it. Two hundred and eleven children between 7 and 14 years old were selected and 191 were included, 178 were re-evaluated 2 years after, of whom 113 had cortisol measures completed. Besides cortisol, they were evaluated at baseline and at end point regarding: abuse/neglect, mental health symptoms, exposure to urban violence and family environment. There was no significant difference between the CAR area under the curve (AUC) before and after the intervention. Two regression analysis models were built to evaluate factors related to the CAR before and after intervention. Before the intervention, working on the streets (vs. not) was related to a greater cortisol increase after awakening, at follow-up, having suffered physical punishment (vs. not) was related to a flattened cortisol response. The intervention was not associated with changes in the magnitude of the CAR AUC, though the CAR was associated with psychosocial stressors pre- and post-intervention. Effective interventions for children at risk that might shape a physiological cortisol response are still needed.

Disparate plasma cortisol concentrations in sexually abused female children from Johannesburg, South Africa

A growing body of research indicates that a bidirectional response to a stressor may occur in maltreated children and may be associated with later life psychopathology. However, few studies have investigated stress reactivity in children when they first present to a sexual abuse clinic. Thus, in order to evaluate whether HPA axis dysregulation would be evident at first presentation to a sexual abuse clinic in young girls (n = 26), between the ages of 6-12 years old, blood samples were obtained immediately following examination at a forensic sexual abuse clinic and from the matched control group of children (n = 14; 10.1 ± 0.8) immediately following a bone density scan. Stratification of the sexually abused group into those children who were reportedly abused by a stranger and had no other family stressors (n = 15, 10.4 ± 1.8) and those children whose parents reported abuse of the child by a stranger and other family stressors (n = 11; 9.5 ± 1.8) revealed differences in stress reactivity. Plasma concentrations, of the children from the forensic clinic, were significantly increased in children who reported abuse by a stranger only (322.3 ± 117.4 nmol/l) and significantly decreased in children whose histories indicated sexual abuse by a stranger and other family stressors (149.6 ± 39.7 nmol/l) when compared to the control group (225.5 ± 47.5 nmol/l). In conclusion, following sexual abuse and a secondary stressor, the forensic examination, there is evidence of divergent cortisol responses in the stratified clinical group of children.

Academic Risk and Resilience in the Context of Homelessness

Family homelessness in the United States has increased over the past two decades, raising concerns about associated risks for child development. In this article, we describe a translational research program focused on academic risk and resilience in homeless and highly mobile children. We find that although these children share many risk factors with other disadvantaged children, they are higher on an underlying continuum of risk. Additionally, marked variability has been observed among children who experience homelessness, both in risk level and achievement, with many children manifesting resilience. We discuss implications for research and efforts to address disparities in achievement.

Improving Youth Mental Health through Family-Based Prevention In Family Homeless Shelters

This exploratory study examines changes in suicidal ideation among a sample (N = 28) of homeless youth, ages 11-14, residing within family shelters in a large metropolitan area. Changes in suicidal ideation from pretest to posttest are compared across two group approaches to delivering HIV prevention. Youth and their families participating in the HOPE Family Program, incorporating a family strengthening approach, are compared to those receiving a traditional health education-only approach. Multivariate analyses reveal that youth in the HOPE Family Program were 13 times more likely to report a decrease of suicidal ideation. These findings indicate that health education programs integrating a family strengthening approach hold promise for positively impacting mental health outcomes for vulnerable youth.

HPA stability for children in foster care: mental health implications and moderation by early intervention

Research on stress-sensitive biological systems has typically focused on activation at one time, yet recent theories emphasize dynamic, context-specific adaptation. This study tested hypothesized calibration of one such system by examining both mean levels and longitudinal stability of daily cortisol--reflecting hypothalamic-pituitary-adrenal axis activation--in children exposed to high-risk versus lower-risk caregiving contexts. Context-specific effects of longitudinal cortisol profiles were addressed via relations with child psychiatric symptoms. Children from regular foster care, foster children participating in a family-based intervention, and community comparison children (n = 96 total) collected saliva samples for cortisol assay at 29 timepoints across 6+ years. High-risk (regular foster care) children showed lower and more variable cortisol levels than their lower-risk (treatment foster care, community comparison) counterparts. For the high-risk children only, higher and more stable cortisol related to elevated anxiety symptoms. Implications for contextual calibration of stress systems and family intervention mechanisms are discussed.

Stress system development from age 4.5 to 6: family environment predictors and adjustment implications of HPA activity stability versus change

This study addressed early calibration of stress systems by testing links between adversity exposures, developmental stability of hypothalamic-pituitary-adrenal (HPA) axis activity, and behavior problems in a sample of adopted children. Families (n=200) were assessed when the child was 9, 18, and 27 months, 4.5 and 6 years to collect adversity information-parent psychopathology, stress, financial need, and home chaos. Morning and evening cortisol samples at the final two assessments indexed child HPA activity, and parent-reported internalizing and externalizing at the final assessment represented child behavior outcomes. Increases in cumulative adversity from 4.5 to 6 related to higher child morning cortisol, whereas age six cumulative adversities related to lower, unstable child evening cortisol. Examination of specific adversity dimensions revealed associations between (1) increasing home chaos and stable morning cortisol, which in turn related to internalizing problems; and (2) high parental stress and psychopathology and lower, unstable evening cortisol, which in turn related to externalizing problems.

Risk, Vulnerability, and Protective Processes of Parental Expressed Emotion for Children's Peer Relationships in Contexts of Parental Violence

This study examined risk, vulnerability, and protective processes of parental expressed emotion for children's peer relationships in families living in emergency shelters with high rates of exposure to parental violence (EPV). Parental criticism and negativity were hypothesized to exacerbate the association between EPV and poorer peer relations, whereas parental warmth was expected to buffer this association. Participants included 138 homeless parents (M = 30.77 years, SD = 6.33, range = 20.51-57.32 years; 64% African American, 12% Caucasian, 24% other) and their 4-to 6-year-old children (43.5% male; M = 4.83, SD = .58, range = 4.83-6.92 years; 67% African American, 2% Caucasian, 31% other). Families were assessed during the summer at three urban shelters, with parents completing the Five-Minute Speech Sample (FMSS), later scored for criticism, negativity, and warmth, and interview items about EPV. Teachers were subsequently contacted in the fall about children's classroom behavior, and they provided ratings of peer relations. Demographic factors, parental internalizing symptoms, and observed parental harshness were examined as covariates. Regression analyses indicated an interaction of EPV and warmth, consistent with a moderating effect of expressed emotion for EPV and peer relations, although no interactions were found for criticism or negativity. Observed harshness also directly predicted worse peer relations. Parental warmth may be protective for positive peer relations among impoverished families with high levels of EPV. The FMSS is discussed as an efficient tool with potential for both basic clinical research and preventative interventions designed to target or assess change in parental expressed emotion.

Global perspectives on resilience in children and youth

Global concerns about the consequences of disasters, political violence, disease, malnutrition, maltreatment, and other threats to human development and well-being have sparked a surge of international interest in resilience science. This article highlights progress and issues in research that aims to understand variations in human adaptation to adverse experiences. Two key questions are considered: Why is a new wave of global research on resilience important for developmental science? and Why is developmental science important for global resilience? The conclusion calls for developmental scientists to engage in international efforts to promote resilience.

Permanent supportive housing: addressing homelessness and health disparities?

Permanent supportive housing (PSH) is an intervention to address long-term homelessness. Evidence has resulted in a shift in US policy toward using PSH rather than shelters and transitional housing. Despite recognizing that individuals transitioning from homelessness to PSH experience a high burden of disease and health disparities, public health research has not considered whether and how PSH improves physical health outcomes. Based on diverse areas of research, we argue that in addition to improved access to quality health care, social determinants of health (including housing itself, neighborhood characteristics, and built environment) affect health outcomes. We identify implications for practice and research, and conclude that federal and local efforts to end long-term homelessness can interact with concurrent efforts to build healthy communities.

Interparental violence, maternal emotional unavailability and children's cortisol functioning in family contexts

Our goal in the present study was to examine the specificity of pathways among interparental violence, maternal emotional unavailability, and children's cortisol reactivity to emotional stressors within interparental and parent-child relationships. The study also tested whether detrimental family contexts were associated, on average, with hypocortisolism or hypercortisolism responses to stressful family interactions in young children. Participants included 201 toddlers and their mothers who were from impoverished backgrounds and who experienced disproportionate levels of family violence. Assessments of interparental violence were derived from maternal surveys and interviews, whereas maternal emotional unavailability was assessed through maternal reports and observer ratings of caregiving. Salivary cortisol levels were sampled at 3 time points before and after laboratory paradigms designed to elicit children's reactivity to stressful interparental and parent-child contexts. Results indicated that interparental violence and the mother's emotional unavailability were differentially associated with children's adrenocorticol stress reactivity. Furthermore, these family risk contexts predicted lower cortisol change in response to distress. The results are interpreted in the context of risky family and emotional security theory conceptualizations that underscore how family contexts differentially impact children's physiological regulatory capacities.