The hypothesis that hostile and nonhostile individuals would differ in both magnitude and duration of cardiovascular reactivity to relived anger was tested. Participants were 66 older adults (mean age, 62; 38 women and 28 men; 70% Caucasian American, 30% African American). Each took part in a structured interview scored using the Interpersonal Hostility Assessment Technique. Later each relived a self-chosen anger memory while heart rate and systolic and diastolic blood pressures were measured continuously using an Ohmeda Finapres monitor. Hostile participants had larger and longer-lasting blood pressure responses to anger. African Americans also showed longer-lasting blood pressure reactivity to anger. Health and measurement implications are discussed.