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Background. Elite athletes often have enlarged hearts. This enables them to reach amazing levels of athletic endurance and strength. These super hearts can pump huge amounts of blood which carries oxygen to the muscles. A super charged heart is the same as a super charged motor in a car. This co
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1. The Heart Of An Athlete In highly conditioned athletes, a big heart-the literal, not the metaphorical kind- is a sign of health and power. But in some cases, it can be a deadly burden.