VOA慢速英语2012.07.09 medical, levels, 的, 胆固醇, involving

Rebecca949

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. 一项研究对有关胆固醇的普遍观点提出质疑。这种观点就是，血液中所谓“有益的”胆固醇含量高可以减少心脏病的风险。这种“有益的”胆固醇的医学名字叫高密度脂蛋白（HDL）。
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