| http://www.w3.org/ns/prov#value | - Training hard in aerobic sports, such as cycling, running or swimming, tends to result in a bigger heart that pumps more blood throughout the body.Dr. Douglas Zipes, a spokesman for the American College of Cardiology, who studies sudden deaths in athletes, said previously it can be difficult to differentiate a normal athlete's heart from potentially deadly hypertrophic cardiomyopathy.Cardiac echo
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