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 …

The 'best' cardio workout for a healthy heart, Heart

Modulators of potential adverse cardiac and renal effects of

Physical activity, cardiorespiratory fitness, and cardiovascular

Exercise kills but only super-fit need worry as extreme sports

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Conceptual overview of the “Extreme Exercise Hypothesis

Athletes, rest easy: Extreme exercise does not raise heart disease

Can High Levels Of Intense Exercise Affect Heart Rhythm?

Heart Risks Associated With Extreme Exercise

Down the Backstretch: July 2014

Ask a Cardiologist: How High Should Your Heart Rate Get During

Extreme Exercise Not a Threat to Athletes

3 Ways to Train Like a Navy Seal - wikiHow Fitness