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Too Much Exercise Could Be Bad For Your Heart
Too much exercise may be too much of a good thing.
Recent research suggests chronic training for and competing in marathons, iron man triathalons and long distance bicycle races may cause structural changes to the heart and large artieries that can lead to myocardial injury and heart rhythm abnormalities.
Last March, legendary ultra-marathoner, Micah True, died suddenly while on a routine 12-mile training run.
An autopsy found his heart was enlarged and scarred.