Contrary to our hypothesis, results provided support for racial similarities in same day emotional reactivity to family arguments (Hypothesis 2). Both races reported family argument-related increases in NA and decreases in PA, whereas as anticipated, the lagged effect of family arguments on NA was greater for African Americans than for European Americans (Hypothesis 3). Also, consistent with our hypothesis, African Americans were more physically reactive to family arguments than were European Americans and the effect of the previous day’s family argument on African Americans’ physical symptoms lasted into the next day (Hypotheses 2 & 3).