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The chance of surviving heart attack is high if you are engaged in regular exercise.
According to professor of cardiovascular prevention and rehabilitation, University of Copenhagen, myocardial infarctions are less fatal in animal that exercise.
The study want to see if exercise prevent myocardial infarction in human, 14,223 participants who had never had a heart attack or stroke were examined.
Their level of physical activity was assessed in 1976-1978 and classified as sedentary, light, moderate or high.
The participants were monitored until 2013, A total of 1,664 had myocardial infarction and 425 died immediately.
Researchers discovered that patients who exercised may not die from myocardial infarction, while sedentary patients were more likely to die.
Regular exercise improves blood flow and reduce heart injury, it can also leads to development of collateral blood vessels in the heart which supplies blood to the heart after a blockage.