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We investigated linkages between spousal support satisfaction and affective, cortisol, and blood pressure responses to conflict in two samples, 85 newlyweds and 31 older couples, married an average of 42 years. Couples were admitted to a hospital research unit and provided self-reports regarding the support received from their spouses. After a baseline period, couples engaged in a 30-min conflict discussion during which time blood was drawn for cortisol assessment. After the conflict, newlyweds' blood pressure was measured. Among newlywed wives, greater spousal support satisfaction was associated with smaller changes in negative affect and cortisol responses to conflict. Notably, newlywed wives and husbands demonstrated lower blood pressure after conflict when spousal support satisfaction was higher. In contrast, older husbands (but not wives) exhibited greater cortisol responses when spousal support satisfaction was lower. These relationships provide a window on mechanisms linking marriage and health for men and women across the life span.

We examined 31 older couples’ wife demand/husband withdraw communication patterns and cortisol responses to marital conflict. Regression analyses indicated that wife demand/husband withdraw sequences during conflict related to cortisol responses only for wives. Based on a mixed model that accounted for the interdependence of spouses’ perceptions of communication patterns and outcomes, older spouses who reported greater wife demand/husband withdraw patterns in their marriage had greater cortisol responses during a conflict discussion; actual demand-withdraw did not relate to cortisol responses in this model. Findings suggest that perceived communication patterns contribute to neuroendocrine responses to marital conflict, and implications for marriage and health research with older couples are discussed.