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胆固醇以2种形式运转于血液中:低密度脂蛋白胆固醇(LDL)和高密度脂蛋白胆固醇(HDL)。血液中胆固醇太多,LDL中的胆固醇开始附于动脉壁上,使动脉变硬,随时间推移,增加心血管危险。HDL的胆固醇似有相反的作用。HDL的颗粒装满了蛋白和脂肪。它摄取血中多余的胆固醇,运送至身体的其他部分,清除至体外。所以HDL保护个体不发生心血管病。为
Cholesterol operates in the bloodstream in two forms: low-density lipoprotein cholesterol (LDL) and high-density lipoprotein cholesterol (HDL). Too much cholesterol in the blood, cholesterol in LDL starts to attach to the walls of the arteries, causing the arteries to harden, increasing the cardiovascular risk over time. HDL cholesterol seems to have the opposite effect. HDL particles are full of protein and fat. It takes excess blood cholesterol, transported to other parts of the body, cleared to the outside. Therefore, HDL protects individuals from developing cardiovascular disease. for