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October 2016 Emotional upset and heavy exertion may trigger a heart attack finds NUI Galway research
- Experiencing anger/emotional upset or heavy physical exertion linked with a doubling of heart attack risk.
- Being angry or emotionally upset while engaging in heavy physical exertion linked with a tripling of heart attack risk.
- The findings do not negate the benefits of appropriate, regular physical activity in preventing heart attacks.
- Study, largest of its kind, analysed data from 12,461 patients with an average age 58.
Being angry or emotionally upset or engaging in heavy physical exertion may trigger a heart attack, according to new research published in the American Heart Association’s journal Circulation.
In a large international study, researchers found an association (more than twice the risk) between anger or emotional upset and the onset of heart attack symptoms within one hour. The same was true for heavy physical exertion during the hour before their first heart attack. However, the association was stronger (more than triple the risk) in those patients who recalled being angry or emotionally upset while also engaging in heavy physical exertion.
“Previous studies have explored these heart attack triggers; however, they had fewer participants or were completed in one country, and data was limited from many parts of the world,” said Dr Andrew Smyth, study lead author and a researcher at the HRB Clinical Research Facility at NUI Galway and the Population Health Research Institute at McMaster University, Canada. “This is the first study to represent so many regions of the world, including the majority of the world’s major ethnic groups.”
Researchers analysed data from 12,461 patients (average age 58) participating in INTERHEART, a study consisting of patients with first-ever heart attacks across 52 countries. Participants completed a questionnaire about whether they experienced any of the triggers in the one hour before their heart attack. They were also asked if they had experienced any of the triggers in the same one hour period on the day before their heart attack.
Authors said that these triggers appeared to independently increase a person’s heart attack risk beyond that posed by other risk factors, including age, smoking, obesity, high blood pressure and other health problems linked to heart attack.
“This large, nearly worldwide study provides more evidence of the crucial link between mind and body,” said Barry J. Jacobs, Psy.D., an American Heart Association volunteer and director of behavioral sciences at the Crozer-Keystone Family Medicine Residency Program in Springfield, Pennsylvania. “Excess anger, under the wrong conditions, can cause a life-threatening heart attack. All of us should practice mental wellness and avoid losing our temper to extremes.”
Dr Andrew Smyth said that extreme emotional and physical triggers are thought to have similar effects on the body. “Both can raise blood pressure and heart rate, changing the flow of blood through blood vessels and reducing blood supply to the heart” he said. “This is particularly important in blood vessels already narrowed by plaque, which could block the flow of blood leading to a heart attack.”
“Regular physical activity has many health benefits, including the prevention of heart disease, so we want that to continue,” he said. “However, we would recommend that a person who is angry or upset who wants to exercise to relieve some of this stress, not go well beyond their normal routine to extremes of activity.”
One limitation of the study was that participants had to recall their triggers. After a heart attack, a person may be more inclined to say they experienced a trigger than they otherwise would be. In addition, participants were not given any descriptions of being angry or emotionally upset or of heavy physical exertion. Self-defined, these triggers appear to have the same effect across countries and ethnicities.
“People who are at risk of a heart attack would do best to avoid extreme emotional situations,” Jacobs said. “One way many cope with the emotional ups and downs of a health condition is through peer support, talking with others who are facing similar challenges can be very helpful in better managing your own emotions.”