쉐도잉 연습: The Habits That Keep Your Brain Sharp | Dr. Sanjay Gupta - World Governments Summit - 영상으로 영어 말하기 배우기

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The brain can not only stay healthy throughout your entire life, but also continue to improve.

He is Dr. Sanjay Gupta, American neurosurgeon and the chief medical correspondent for CNN.

And there's now a way that we realize and appreciate that within our skulls is an entire universe.

As our imaging grew more sophisticated, we started to see what the healthy brain really does look like.

and it's we talk a lot about the health of our bodies

but not as much about our brains

and i think for a lot of people there's this belief

that the brain is something that's not capable of really being optimized

or maintained i've been a neurosurgeon for some 25 years now

and i think a lot of people think about the brain

sort of as a black box you measure a black box by its inputs and its outputs,

but you don't really get to see the inner workings of the brain.

And I think that's why people have thought for a long time that it's immutable.

It's incapable of being changed in some way.

The brain is static and it's fixed.

And one of the things I really wanted to convey to all of you today is that that's not the case.

Perhaps more than any other organ in the body, the brain can not only stay healthy throughout your entire life,

but also continue to improve.

Over the last quarter century, we learned something that was pretty revelatory in the world of neuroscience.

We learned that you could continue to grow new brain cells at any age.

The conventional wisdom, even what I learned when I was studying neuroscience a quarter century ago,

was you got a certain number of neurons and that was basically what you got.

You drained the cash over the years of your life.

But that's not the case.

We believe that in part because the only time we really inspected the black box was when there was a problem, when there was a tumor or trauma.

We did not get to see the brain in sort of its healthy state.

We did not get to understand how the brain behaved most of the time.

As our imaging grew more sophisticated, we started to see what the healthy brain really does look like.

And it's stunning.

Inside your skulls right now, your brain is pulsing.

It's robust.

It's changing.

And it's growing.

And there's now a way that we realize and appreciate that within our skulls is an entire universe.

There are more neurons in your brain than there are stars in the sky.

I spent a lot of time talking to scientists who worked on this research and I asked them, how do they fundamentally live their lives now differently because of what they've learned?

And the way

that I sort of broke this down is into the big buckets of how we live our lives through movement,

through nourishment, through rest, through connection, and through discovery.

I think movement is the most reliable way to grow new brain cells.

The more you move, the more you are sending signals essentially to your entire body that you want to be here, that you want to be healthy.

But most remarkably, you're sending a signal for the brain to create a substance known as BDNF, brain-derived neurotrophic factor.

You don't need to remember that, but think of that as sort of the miracle grow for the brain, as one scientist put it to me.

It's the substance that is actually promoting that neurogenesis, telling new brain cells to grow.

You cannot ingest it.

You cannot eat it.

It can only be made by your own body.

The brain is very sensitive to glucose.

So as your blood glucose starts to really rise, the receptors in the brain, instead of absorbing all that energy, they turn off.

They simply stop absorbing any energy.

So at the same time, you're eating a really, really calorie-dense meal full of a lot of sugar.

You could be overstuffing your body and starving your brain at the same time.

That's a difference between the brain and the rest of the body.

Hydration, critically important for all functions hydration is one of the substrates that is necessary for BDNF,

but one needs to keep in mind that the brain itself is 85% water.

What that means is just 1% dehydration can lead to a 5% decrease in cognitive function.

1%.

I mean, I think this is one of the most under-recognized things that we talk about with regard to cognition overall.

A 2% decrease in hydration can result in acute short-term memory loss, objective problems with mathematical computations,

and an inability to store long-term memories.

Just 2%.

So sugar and water, so critical when it comes to brain health for those reasons.

Sleep, rest, again, we know is important.

But for the brain, sleep is not a period of inactivity.

In fact, it's one of the most metabolically active times for the brain.

And we know that your brain is constantly creating waste products and those waste products are constantly being cleared,

but it is during sleep when that waste clearance is most efficient.

Sleep is really important for clearing away some of the substrates that may be the precursors to things like amyloid plaque,

which is associated with Alzheimer's disease.

We also know that sleep is when you actually take your short-term memories

and you actually put them into a long-term memory store.

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이 비디오는 복잡한 주제를 명확하게 전달하는 능력을 키우는 데 중점을 둡니다. 의학적 용어와 추상적인 개념이 포함된 대화를 따라가면서, 논리적인 흐름을 유지하며 말하는 연습을 할 수 있습니다. 특히 "뇌 건강"과 관련된 주제를 설명할 때 필요한 구조화된 표현 방식을 익히고, 자연스러운 어조로 전문 용어를 다루는 기술을 향상시킬 수 있습니다. 이는 영어로 전문적인 주제를 논의하거나 설명할 때 필수적인 유창성 milestones입니다.

구문 뱅크

"continue to improve" - 계속해서 발전하다
"conventional wisdom" - 전통적인 견해
"fundamentally live their lives differently" - 근본적으로 다른 방식으로 삶을 살다
"promoting that neurogenesis" - 신경발생을 촉진하다
"sensitive to glucose" - 포도당에 민감하다

약점을 보완하세요

이 비디오는 긴 문장의 리듬과 강세를 연습하는 데 도움이 됩니다. Dr. Sanjay Gupta의 발화는 논리적이고 완성도 높은 문장 구조를 가지고 있어, 쉐도잉 연습에 적합합니다. 특히 "the brain can not only stay healthy throughout your entire life, but also continue to improve"와 같은 "not only... but also" 구조의 문장을 따라할 때, 두 부분의 균형을 맞추는 발음과 강세를 익힐 수 있습니다. 영어 쉐도잉을 할 때는 발화자의 리듬을 정확하게 따라가는 것이 중요한데, 이를 위해 shadowing site나 shadowspeak과 같은 도구를 사용하면 효과적입니다. shadow speech 또는 shadow speak 방식으로 연습하면, 긴 문장도 자연스럽게 구사할 수 있게 됩니다. 또한, "BDNF, brain-derived neurotrophic factor"와 같은 전문 용어의 발음도 연습할 수 있는 기회입니다. 이런 용어는 발음이 어렵지만, 반복적인 쉐도잉을 통해 정확하게 구사할 수 있게 됩니다.

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화자가 가장 많이 쓰는 문형을 영상 속 실제 표현과 함께 정리했습니다.

문형	영상 속 표현
수동태 be + 과거분사 — 누가 하는지보다 무슨 일이 일어나는지에 초점	being optimized · being changed · be made
현재완료 have/has + 과거분사 — 과거의 일이 지금도 관련이 있을 때	i've been · have thought · they've learned

쉐도잉이란? 영어 실력을 빠르게 키우는 과학적 방법

쉐도잉(Shadowing)은 원래 전문 통역사 훈련을 위해 개발된 언어 학습 기법으로, 다언어 학자인 Dr. Alexander Arguelles에 의해 대중화된 방법입니다. 핵심 원리는 간단하지만 매우 강력합니다: 원어민의 영어를 들으면서 1~2초의 짧은 지연으로 즉시 소리 내어 따라 말하는 것——마치 '그림자(shadow)'처럼 화자를 따라가는 것입니다. 문법 공부나 수동적인 청취와 달리, 쉐도잉은 뇌와 입 근육이 동시에 실시간으로 영어를 처리하고 재현하도록 훈련합니다. 연구에 따르면 이 방법은 발음 정확도, 억양, 리듬, 연음, 청취력, 말하기 유창성을 크게 향상시킵니다. IELTS 스피킹 준비와 자연스러운 영어 소통을 원하는 분들에게 특히 효과적입니다.

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쉐도잉 연습: The Habits That Keep Your Brain Sharp | Dr. Sanjay Gupta - World Governments Summit - 영상으로 영어 말하기 배우기

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쉐도잉이란? 영어 실력을 빠르게 키우는 과학적 방법