Now a research study conducted at the Harvard School of Public Health, has found that the risk of a heart attack or stroke is much higher for about two hours immediately following an angry outburst. The risk for a heart attack is increased almost five-folds, whereas the risk is increased two-folds for stroke. This finding is more consistent in individuals with preexisting risk factors.
According to the researchers, 'At a population level, the risk with a single outburst of anger is relatively low - one extra heart attack per 10,000 people per year could be expected among people with low cardiovascular risk who were angry only once a month, increasing to an extra four per 10,000 people with a high cardiovascular risk. But the risk is cumulative, meaning temper-prone individuals will be at higher risk still.'
It is not exactly clear how anger causes the increased risk, but a constant rise in stress level might be significant. Chronic stress is known to lead to high blood pressure which itself is a risk factor for heart diseases. Use of alcohol consumption or smoking for relieving the stress might further exacerbate that risk. Yet, further research is required to fully understand how anger could lead to an increased risk of cardiovascular events and what steps might successfully abate that risk.
This study involved the data analysis of nine studies in which anger and cardiovascular events were self-reported over a period of two decades. It was published in the European Heart Journal on March 3rd, 2014.
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