Cristina Guerrero

Impact of Defensive Hostility in Cardiovascular Disease

Among the psychosocial factors that may influence the development, maintenance, and progression of cardiovascular disease, defensive hostility as a possible risk factor has received substantial empirical support in recent years. The aim of our study was to analyze the relationship between defensive hostility and cardiovascular response to stress situations, as a better predictor of cardiovascular functioning than hostility alone. The sample was composed of 130 female university students. The Cook-Medley Hostility Inventory (Ho) and the Spanish version (CRP) of the Marlowe-Crowne Social Desirability Scale (MC) were used to measure defensive hostility. We used the registration system MP150 (Biopac) to measure the physiological variables throughout the 3 experimental phases (adaptation, task, and recovery). The stress task was a real exam. We expected cardiovascular responses, heart rate, and systolic and diastolic blood pressure to be higher in subjects with high hostility and high defensiveness in all 3 phases. The results reflect that individuals with high hostility and high defensiveness present the highest values in the physiological variables, thus supporting the hypothesis that defensive hostility shows the greatest predictive power in relation to cardiovascular functioning in stressful situations.

Psychophysiological Cardiovascular Functioning in Hostile Defensive Women

Cardiovascular diseases are the leading causes of death and disability in the world, in both developed and developing countries, and also in both sexes. In fact one third of annual deaths worldwide are due to cardiovascular problems, according to the WHO (World Health Organization) estimated 17.3 million people died from CVDs in 2008, over 80% of CVD deaths take place in lowand middle-income countries, and by 2030, almost 23.6 million people will die from CVDs (in http://www.who.int/cardiovascular_diseases). Therefore, is a serious problem, and not only in industrialized countries, indeed, is an epidemic that not only continues but it is precisely in the developing countries, where it currently is increasing dramatically. On the other hand, prevalence and mortality from these diseases among women has increased in an exaggerated way. This for several reasons: first, as mentioned, in women the death rate from CVDs has increased significantly, equaling or exceeding that of the male population, so we think it is of great importance to focus on studies considering this sector only a few risk factors have also increased; second, the sample with which we had consisted mostly of women, given the characteristics of it (psychology undergraduates), which were removed the few men who participated in the study. Thus, from these data and indications, and since most studies have focused on people of both sexes or only male, we considered appropriate to carry out research with a sample of only women.