Because there is no more glucose and the fats are too large to cross the blood-brain barrier, your brain changes modes and begins to use ketone bodies for energy, which are short-chain derivatives of fatty acids.

因为没有更多的葡，肪又太大而不能通过血脑屏障，你的大脑就会改变模式，开始使用体为能量，体是肪酸的短链衍生物。

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，我们的身体会产生体，这被认为是抑制食欲的。

Interestingly, both ketone bodies break down into acetone and escape as a gas by getting breathed out the lungs which gives a sweet fruity smell to a person's breath.

有趣的是，两种体都会分解成丙，之后以气体形态随着肺部呼吸排出，会使患者的口气有一种水果似的甜味。

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

一研究表明，我们的身体可以适应其他能量来源，如体，减少对碳水化合物的依赖。

You also have to know a little bit about ketosis because this is one of the goals of the coffee.

你还必须对症有一点了解，因为这是咖啡的目标之一（防弹咖啡减肥法会促进肪分解，产生大量体）。

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

然而，老年痴呆症患者大脑将体为其能量来源却没有任何问题。

These ketone bodies are important because they can be used by cells for energy, but they also increase the acidity of the blood, which is why it's called keto-acid-osis.

这体很重要，可被细胞用来获取能量，但他们也会增加血液酸性，所以才症酸中毒。

As this 1986 paper reveals, " ketone bodies could account for as much as 25% of the neonate's basal energy requirements in the first several days of life."

正如这篇 1986 年的论文所揭示的，“新生儿最初几天的基本能量需求中，体可能占到 25%。”

After that happens, the liver turns the fatty acids into ketone bodies, like acetoacetic acid and beta hydroxybutyric acid; acetoacetic acid is a ketoacid because it has a ketone group and a carboxylic acid group.

此后，肝把肪酸转化成体，比如乙酰乙酸、β-羟基丁酸；乙酰乙酸是一种酸，因为它有基团和羧酸基团。

Beta hydroxybutyric acid on the other hand, even though it's still one of the ketone bodies, isn't technically a ketoacid since its ketone group has been reduced to a hydroxyl group.

而β-羟基丁酸虽说也是体，但却不是酸，因为它的基团被还原成了羟基。

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

研究表明，体可以提供人体大脑所需能量的 60%。

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，当人体碳水化合物摄入受限时体——人体内肪的代谢产物——便自然而然地成了大脑能量的新来源。

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

不仅如此，正如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体的数量要更多。

By analyzing the villi that provide contact with the mother's blood to the fetal membrane, Muneta deduced that the fetus must be living in an environment of elevated ketones from the start of pregnancy.

通过分析在母体血液和胎膜之间起着纽带用的绒毛，Muneta 推导出，在母体受孕之，初胎儿便生活在一个体水平较高的环境中。

Unless you're a keto and ketogenic adapted, you need carbohydrate is glucose.

除非你是体适应者，否则你需要碳水化合物，即葡。

So it's a preferential energy source, moves above ketones, carbs, everything.

因此，它是一种优先的能量来源，优于体、碳水化合物等一切。

Bicarb, ketones, all these sort of things.

小苏打，体，所有这之类的东西。

I wish I knew the answer offhand, but I know that ketones, exogenous ketones, for instance, I mean, there are many different types, ketones, salts, ketones, monoesters, diesters, etc., but have been developed to protect divers, specifically military divers from oxygen toxicity.

我无法立即给出答案，但我知道体，比如外源性体，种类繁多，有盐、单酯、二酯等，这体已被研发出来，旨在保护潜水员，特别是军事潜水员，免受氧中毒之害。

Some of that acetone leaves your body when you exhale, and people with too many ketone bodies may even have a " fruity" smell to their breath from breathing out so much acetone.

一丙会在你呼气时离开身体，而体过多的人可能会因为呼出大量丙而导致呼吸带有“水果味” 。

So I was looking at things like electric brain stimulation and taking ketones and doing various sort of advanced protocols to enhance my ability to push harder.

因此，我开始关注诸如电刺激大脑、摄入体以及采用各种高级训练方案，以提升自己突破极限的能力。