Close relationships ridden with conflict may boost heart disease riskNovember 14th, 2007 - 1:53 am ICT by admin
“An extensive body of research shows that social relations are associated with better health and reduced risks of cardiovascular disease. However, contradictory findings on the health benefits of structural support and the limited protective effect of marital status against cardiovascular disease among women have stimulated further scientific inquiry into the quality of social relationships,” the authors write.
Roberto De Vogli, Ph.D., M.P.H., and colleagues asked 9,011 British civil servants, on average in their mid-40s, to complete a questionnaire either between 1989 and 1990 or 1985 and 1988. They answered questions about up to four of their close personal relationships, but mostly about their primary relationship.
Of the 8,499 individuals who did not have coronary heart disease at the beginning of the study and who provided sufficient information for the analysis, 589 reported a coronary heart disease event.
After adjusting for other factors that influence heart disease risk-such as sociodemographic characteristics and health habits-those who experienced a high level of negativity in their close relationships were 1.34 times more likely to experience a coronary heart disease event than those with a low level of negative close relationships.
The association was weakened somewhat but still significant after the researchers adjusted for negative personality traits and depression, indicating that emotions may partially mediate the association between negative relationships and heart disease.
“When one considers emotional factors and their biological translation into the body, research shows that negative marital interactions are associated with depression, often in combination with reduced self-esteem and/or higher levels of anger,” the authors write.
“These emotional reactions have been found to influence coronary heart disease through the cumulative ‘wear and tear’ on organs and tissues caused by the alterations of autonomic [involuntary] functions, neuroendocrine changes, disturbances in coagulation [blood clotting] and inflammatory and immune responses,” they add.
He study also pointed out that though women and those in lower employment grades were more likely to experience negative relationships, the associations with heart disease did not change based on sex or social position.
In addition, heart disease risk was not associated with the level of emotional or practical support received.
“It is possible that negative aspects of close relationships are more important for the health of individuals because of the power of negative close relationships to activate stronger emotions (worrying and anxiety) and the consequent physiological effects. In contrast, other more positive forms of support may not affect the physiology of individuals in a measurable or clinically relevant way,” the authors write.
The study is published in the Oct. 8 issue of Archives of Internal Medicine, one of the JAMA/Archives journals. (ANI)
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Tags: british civil servants, cardiovascular disease, close relationships, coronary heart disease, depression, Health Science, heart disease risk, influence heart disease, marital interactions, negative relationships, personality traits, social relationships, times more likely