A major statistical review by Chida and Steptoe in 2009, which synthesized findings from 35 studies conducted between 1983 and 2006, provided compelling evidence that anger and hostility are serious long-term risk factors for adverse cardiovascular outcomes. The review established that this risk is significant for both healthy individuals and those already diagnosed with heart disease.

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Extensive research has identified the anger and hostility dimension of the Type A behavior pattern as a primary predictor for the development of heart disease. This link is strongly supported by meta-analyses, such as a major 2009 review of 35 studies, which concluded that anger and hostility are significant long-term risk factors for negative cardiovascular outcomes. This risk applies to both healthy individuals and those with pre-existing heart conditions.

Anger and Hostility as Risk Factors for Heart Disease

Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

OpenStax Psychology (2nd ed.) Textbook

A study by Haynes et al. (1980) was among the first to pinpoint a specific element of the Type A pattern associated with cardiac health. Their research concluded that suppressed hostility—the act of internalizing anger—was a significant factor that substantially increased the risk of heart disease for both men and women.

Suppressed Hostility as a Predictor of Heart Disease

A long-term investigation followed over 1,000 male medical students for decades, assessing their reactions to pressure. The results showed a dramatic correlation between anger and cardiac health. By age 55, participants who had initially reported the highest levels of anger were over six times more likely to have had a heart attack and 3.5 times more likely to have developed heart disease compared to those who reported less anger.

Longitudinal Study on Anger and Heart Disease in Medical Students

Chida and Steptoe (2009) Meta-Analysis on Anger and Cardiovascular Health

The transactional model offers a potential explanation for how hostility contributes to cardiovascular disease. It posits that hostile moods can create social strain through antagonistic interactions with others. This strain may then trigger disease-promoting cardiovascular responses. This creates a self-perpetuating cycle where hostility and social strain reinforce each other, ultimately harming cardiovascular health.

Transactional Model of Hostility and Social Strain

Initial research into psychological risk factors for heart disease often examined a broad behavioral pattern that included competitiveness, a sense of urgency, impatience, and hostility. However, subsequent, more conclusive research has demonstrated that the specific components of anger and hostility are the most significant predictors of negative cardiovascular outcomes. Analyze why focusing on these specific emotional traits provides a more reliable and powerful prediction of heart disease risk compared to studying the broader, multi-component behavioral pattern.

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