Anger can kill in an instant by triggering acute cardiovascular events like heart attacks and stroke. A new study, published in a 2015 issue of the American Heart Journal, shows that anger, and even an angry personality trait, can contribute to trouble by choking off oxygen to the heart muscle without any symptom of chest pain.
The study made use of sophisticated imaging (single-photon emission computed tomography) to document a direct anger link to “silent ischemia.” Ischemia refers to the heart muscle not receiving adequate oxygen to optimally conduct its demanding around-the-clock pumping action, usually a result of narrowed or blocked coronary arteries. This situation is frequently accompanied by angina (chest pain), the most common symptom of coronary artery disease.
In this study, Emory University researchers tested nearly 100 men and women between the ages of 38 and 60 – a younger population − who had survived a heart attack within the previous six months. Imaging was conducted before and after a mental stress challenge involving public speaking about a real-life stressful situation. Those participants who had higher levels of anger, either as a temporary emotion response or as a personality trait, were found to have a more significant increase in heart muscle ischemia.
This was the first study, according to the researchers, to document the association between anger dimensions and mental stress-induced silent ischemia using the most current imaging standard for ischemia assessment.
Reference:
- Pimple P, et. al. Association between anger and mental stress–induced myocardial ischemia. Am Heart J. Jan 2015. 169(1): 115-121. Published online at http://www.ahjonline.com/article/S0002-8703(14)00560-2/abstract
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