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The Boston Globe

Nation

US studies genes and heart disease risks

NEW YORK — Early heart disease ran in Rick Del Sontro’s family, and every time he went for a run, he was scared his heart would betray him. So he did all he could to improve his odds. He kept himself lean, stayed away from red meat, spurned cigarettes, and exercised intensely, even completing an Ironman Triathlon.

But after his sister, just 47 years old, found out she had advanced heart disease, Del Sontro, then 43, and the president of Zippy Shell, a self-storage company, went to a cardiologist.

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