Harvard Heart Letter

A possible culprit in early heart attacks

High blood levels of a fatty particle called lipoprotein(a) may explain some unexpected premature heart attacks. Have you ever heard of a middle-aged man who was in great shape, never smoked, had a normal cholesterol level, but still had a heart attack? Many people either know someone who fits that profile or have read about Bob Harper, the celebrity fitness trainer from the TV show The Biggest Loser, who had a heart…

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