The other one is high-density lipoprotein, or HDL.

另一个是高密度脂蛋白，或 HDL。

Right. One is your level of low-density lipoprotein cholesterol, or LDL.

对。一个是你低密度脂蛋白胆固醇水平，或 LDL。

Saturated fat creates low-density lipoprotein, or LDL, which is the bad kind of cholesterol.

饱和脂肪会产生低密度脂蛋白，即 LDL ，这是一种有害胆固醇。

But they didn't fully understand how cholesterol moves in our blood, including the roles of the different lipoproteins that ferry it around.

但他不能理解固醇是怎么进到血液里，包括脂蛋白将他运送至全身各处作用。

The research team found a link between raised levels of a type of cholesterol called LDL, low density lipoprotein, and the development of disease.

该研究团队发现，这种名为低密度脂蛋白（LDL）胆固醇水平升高与患痴呆症有关联。

They also look at whether that cholesterol is being shuttled by low-density lipoproteins or LDL, the so-called 'bad' cholesterol, and high density lipoproteins or HDL, the 'good' cholesterol.

他观察是否胆固醇被低密度脂蛋白（LDL）运送，叫做“坏”胆固醇，和高密度脂蛋白HDL，就是“好”胆固醇。

It's carried around the body in our blood by different types of lipoprotein and that's important because it's responsible for the terms good and bad cholesterol.

它由不同类型脂蛋白携带在我血液中，这很重要，因为它负责好胆固醇和坏胆固醇。

Metabolic syndrome exists when you have at least three risk factors, including excess stomach fat contributing to an enlarged waist size, high triglycerides, high blood pressure, high fasting blood sugar or a low high-density lipoprotein level.

当你身体传递至少有三个危险信号时，就存在代谢综合征，包括导致腰围增大过多胃脂肪、高甘油三酯、高血压、高空腹血糖或低高密度脂蛋白水平。

But an excess of low-density lipoprotein, or LDL, the so-called " bad" cholesterol, in the blood can build up to form a fatty plaque on the inside of your arteries, permanently increasing the resistance, and hindering blood flow.

但是血液中过量低密度脂蛋白，即所谓“坏”胆固醇，会在动脉内部形成脂肪斑块，永久增加阻力，阻碍血液流动。