Well, the blood that flows from your arm into that bag is whole blood, a mixture of cells and cell fragments called formed elements, along with water, and lots of dissolved molecules.

嗯，从你手臂流入袋子的血液是全血，细胞和细胞碎片的混合物，称为形成元素，还有水，和许多溶解的分子。

Actually, if your coat happens to be made of leather, it is made of collagen. And like a coat, this outer layer is what protects and reinforces the whole blood vessel.

事实上，如果你的外是皮革制成的，它确实是由胶原蛋白制成的。就像外一样，外层是保护和强化个血管的东西。

The whole blood bag thing just doesn't make s-- Hold on!

- 个血袋的事情就是不会让 s-- 等一下！

In 2015, a study was published in PNAS that looked at NAD levels in whole blood over time, and it found indeed, NAD levels were going down about 10 to 20% over four decades or so.

2015年， 一项发表在《美国国家科学院院刊》(PNAS)上的研究， 对全血中NAD水平随时间的变化进行，结果确实发现， 在约四十年间， NAD水平下降大约10%到20%。

Metabolically, it causes our blood sugar to spike. And you a lot hear about people getting insulin-resistant. And it just-it messes up the whole blood sugar dynamic when we consume too much sugar.

在代谢方面，它会导致我们的血糖飙升。你经常听说人们会产生胰岛素抵抗。当我们摄入过多的糖时，它只会扰乱个血糖动态。

It still relies on the fact that antibodies and antigens clump together, but it uses a dye that changes color depending on whether it touches whole blood or just plasma.

它仍然依赖于抗体和抗原会聚集在一起这一事实，但它使用一种会根据接触的是全血还是仅血浆而改变颜色的染料。

But if you’re scheduled to donate whole blood—everything, not just the platelets—and you have a headache, no worries!

但是，如果您计划捐献全血——一切，而不仅仅是血小板——而您却头疼， 不用担心！

Whole blood transfusions are often used in more general cases where the clotting property of blood isn’t necessarily the main thing they need.

全血输注通常用于更普遍的情况，其中血液的凝血特性并非他们所需的主要因素。

NMN in raising whole blood NAD levels, but I'm guessing that's probably milligram for milligram, right?

NMN在提高全血NAD水平方面，但我想这可能是按毫克对毫克来比较的，对吧？