Wednesday, September 26, 2012

Rethinking 'Good' Cholesterol; PSA Test Debate

VOA Learning English: Rethinking 'Good' Cholesterol; PSA Test Debate

A study has raised questions about a widely held belief involving cholesterol. The belief is that high levels of so-called good cholesterol in the blood can reduce the risk of a heart attack. The medical name for "good" cholesterol is high-density lipoprotein, or HDL. Doctors commonly believe it reduces the risk of heart attack by removing fatty deposits that can block the flow of blood in the arteries of the heart. (read more)

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