Aspirin helps reduce the risk of cardiovascular disease, but the jury's still out on cancer. iStockphoto.com hide caption

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Lipitor, and other cholesterol-fighting drugs like it, will carry new instructions about risks. Paul Sakuma/AP hide caption

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The latest subject in standardized tests for kids: cholesterol. iStockphoto.com hide caption

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In the U.S., hospitalized heart attack patients go home sooner than in other countries. They are more likely to return to the hospital within a month of being discharged. iStockphoto.com hide caption

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