Millions suffer from sickle cell anemia because they have a single A to T point mutations in both copies of their hemoglobin gene.

数百万人患有镰状细胞性贫，因为他们的白基因的两个拷贝都有一个A点到T点的突变。

And each of those hemoglobins can bind to four oxygen molecules.

而一个白能与4个氧分子结合。

But the most common cause of low haemoglobin levels, or anaemia, is lack of iron.

但导致白水平低或贫的最因是缺铁。

Hemoglobin is the carrier molecule which carries the oxygen obtained during the process of respiration.

白是携带呼吸过程中获得的氧气的载体分子。

However, a decrease in carbon dioxide results in hemoglobin holding onto the oxygen and it's less available for the brain, muscles, and other tissues to use.

然而，当二氧化碳含量降低时，白就会紧紧‘抓住’氧气不放，这时，人的大脑、肌和其他身体组织反而得不到所需的氧气。

The illnesses are caused by errors in the gene for hemoglobin.

这些疾病是由白基因缺陷引起的。

It's where it's a chemical reaction within a non-oxygen environment which keeps the outside of the meat pink so the hemoglobin gets locked in uh so using the nitrites something to do with that.

这是在无氧环境中发生的化学反应，使的外部保持粉色，因此白被锁住，嗯，所以使用亚硝酸盐与此有关。

Octopus have a different special protein called haemocyanin, which makes their blood blue, and the ice fish doesn't have either hemoglobin or the haemocyanin which is why the blood runs clear.

章鱼有一种不同的特殊白质，叫做青素，这使它们的液呈蓝色，而冰鱼既没有白，也没有青素，这就是为什么液是透明的。

This proportion of glycated hemoglobin doesn't change day to day, so it gives a sense for whether the blood glucose levels have been high over the past 2 to 3 months.

糖化白的比例不会每天变化，所以它可以说明糖水平是否已经持续走高2-3个月。

The reason is that, besides its well-known role in haemoglobin, the oxygen-transporting molecule in the blood, iron is also involved in many aspects of brain development.

因为除了在液中的氧气运输分子——白中发挥着众所周知的作用外，铁元素还在许多方面参与了大脑的发育。

By hijacking your hemoglobin which normally carries oxygen in your blood, cells in major organs, like the brain and heart will suffocate and die heightened of levels.

白通在液中携带氧气，通过白一旦被劫持，大脑和心脏等主要器官的细胞就会窒息而死。

In order to better understand sideroblastic anemia, we need to first take a look at hemoglobin, the main protein within RBCs that's responsible for carrying oxygen.

为了更好地了解铁粒幼细胞性贫，我们首先要了解白，它是细胞中负责运输氧气的主要白质。

Athletes sometimes train at high altitude to improve their hemoglobin so that they are capable of carrying more oxygen when they are at sea level.

运动员有时在高海拔地区训练以提高他们的白，这样当他们在海平面上时，他们就能够携带更多的氧气。

Sickle cell disease, where blood cells are sickle-shaped due to a structurally abnormal hemoglobin protein that can cause tissue ischemia, has been linked to FSGS.

细胞因白结构异而整体呈现镰刀形，可导致组织缺，与FSGS有关。

So yeah, I can immediately look at this graph now and think, okay, that's what I thought this dissociation curve for hemoglobin looked like.

所以，是的，我现在可以立即看到这个图表并思考，好吧，这就是我认为白的解离曲线的样子。

Users wear it on their arm. The device has a sensor that measures hemoglobin oxygen levels and changes to the heart rate called HRV.

用户需要将它戴在手臂上。该设备附带的传感器可测量白氧水平和心率变异性（HRV）。

The blood contains hemoglobin, which carries the super important oxygen, while the heart pumps this blood to all the tissues in the body.

液中含有白，它携带着非重要的氧气，而心脏将这些液泵入身体的各个组织。

Yes, there are some studies that show positive effects in things like reducing hemoglobin A1C, reducing blood pressure, reducing body mass index.

是的，一些研究表明，这种做法在降低糖化白（A1C）、降低压和降低体重指数方面有积极效果。

Sickle cell disease is an inherited disorder that affects hemoglobin, the major protein that carries oxygen in red blood cells.

镰状细胞病是一种遗传性疾病，会影响白，白是细胞中携带氧气的主要白质。

To treat sickle cell disease, researchers used CRISPR to make the body produce the fetal form of hemoglobin.

为了治疗镰状细胞病，研究人员使用 CRISPR 使身体产生胎儿形式的白。