Extreme Exercise and the Heart

All runners have heard about the tragedies. The marathoner Alberto Salazar, at the age of forty-eight, suffered a heart attack and lay dead for fourteen …

4 Ways Frequent Intense Exercise Keeps Your Heart Healthy – Built

How common is heart disease caused by extreme exercise? - Quora

Can High Levels Of Intense Exercise Affect Heart Rhythm?

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Down the Backstretch: July 2014

Can exercising too hard and too long cause heart problems? - The

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Heart Risks Associated With Extreme Exercise

Exercising when you have heart disease

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2 days of intense exercise has same heart benefits as regular

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