And the sweet smell is this particular ketone that is given out; it's called acetone.

甜香味尤其是这种酮所散发出，它的学名是丙酮。

We use nitrogen to clean the lacquer, and we use methyl ethyl ketone to keep the stylus clean.

我们用清洁漆，我们用甲乙酮保持唱针的清洁。

Not only that, as he shows here, the Alzheimer's brain actually uptakes ketones better than controls.

不仅此，正他在这里所展示的与对照组相比，老年痴呆症患者大脑摄取酮体的数量要更多。

And when your body breaks down fats without much glucose around, it produces compounds called ketone bodies.

当你的身体分解没有太多葡萄糖的脂肪时，它会产生一种叫做酮体的化物。

However, the Alzheimer's brain has no problem using ketones for energy.

然而，老年痴呆症患者大脑将酮体作为其能量却没有任何问题。

But lactation can also increase the production of ketones.

但是哺乳也会加剧酮类的产生。

Over these 3 days, they will monitor her blood sugar and ketones.

在这三天内，他们会测量她血糖和酮水平。

Some research suggest that our bodies can adapt to other energy sources like ketone bodies and be less reliant on carbs.

一些研究表明，我们的身体可以适应其他能量，酮体，减少对碳水化物的依赖。

Esters are just like a ketone mixed with an ether.

酯就像酮与醚的混。

Babies may be living on ketones even before birth.

甚至在出生前，婴儿可能就靠酮过活。

By functional group I mean an alcohol group or ketone group or aldehyde group or acid group.

官能团是指醇基或酮基或醛基或酸基。

To get that, we knock the 'A' off and harden that 'C' into a 'K' and get a 'Ketone'.

为此，我们将“A”敲掉并将“C”硬化为“K”并得到“酮”。

Very simply put, ketones are a source of energy naturally produced in the body from fat when dietary carbohydrate is restricted enough.

简而言之，当人体碳水化物摄入受限时酮体——人体内脂肪的代谢产物——便自然而然地成了大脑能量的新。

So yeah, when we have a carbonyl in the middle of a carbon chain, that is a ketone functional group.

所以是的，当我们在碳链中间有一个羰基时， 那就是酮官能团。

This works for the time being, but ultimately only 75% of the brain's energy requirements can come from ketones. It still needs glucose!

这暂时会起到作用，但最终酮类只能够满足大脑所需能量的75%，它仍然需要葡萄糖！

Oxford University Emeritus Professor of Chemistry Gus Hancock says it is due to the build-up of chemicals called ketones in the patient's blood.

牛津大学名誉教授化学加斯·汉考克表示这是由于被称为酮的化学物质在病人血液中累积所致。

So, the more caffeine, the more ketones.

所以，咖啡因摄入越多，产生的酮就越多。

And, they enhance the production of ketones.

提高酮的产生。

So during prolonged fasting or any kind of food deprivation situations, our body produces ketone bodies and these have been proposed to suppress appetite.

在长时间禁食或任何食物匮乏的情况下，我们的身体会产生酮体，这被认为是抑制食欲的。

And it has been shown that ketones can provide up to 60% of the energy requirements for an adult brain.

研究表明，酮体可以提供人体大脑所需能量的 60%。