쉐도잉 연습: When Your Body Attacks Itself – Autoimmune - 영상으로 영어 말하기 배우기
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Your immune system is an omnipresent, terrifying entity made of billions of nuclear weapons and kamikaze bombers, saturating every little tissue, bone and fluid in your body.
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It scans, patrols, and when it finds an enemy — it kills.
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But what if it suddenly decides that you are the enemy?
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This is the betrayal of autoimmunity – diseases like Type 1 diabetes, multiple sclerosis, celiac disease, lupus and Crohn's disease and many more.
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Literally every tissue can be affected, from your nerves to your thyroid or joints.
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They are all unique and different kinds of bad, from manageable to life changing to deadly.
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All share one fundamental property: Your immune system thinks some healthy part of you is the enemy.
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It’s like a country attacking itself: fighter jets bomb roads, snipers hunt doctors and baristas, artillery levels daycare centers.
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While there is usually a certain amount of genetic risk for autoimmunity, to get an actual autoimmune disease you also need a colossal case of bad luck on top of that.
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How does this work?
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The Shape Of Life The fundamental building blocks of life are proteins.
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Like ultra complex lego blocks each of them has a precise shape, allowing them to perform highly specific tasks, like breaking down food or transcribing DNA.
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In total your body produces about 100,000 different proteins, or shapes.
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Your immune system evolved to constantly check the proteins of your cells and look for shapes that are not you – and to kill whatever is attached to them violently and brutally.
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Autoimmunity is when your soldier cells suddenly think that your own healthy and natural proteins belong to an enemy.
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We explained this in more detail in this video – but in a nutshell: This is such a critical danger to your survival that your body created an entire murder university to prevent this from happening.
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Here, young immune cells go through ruthless training: if they recognize the shapes of your own proteins, they are executed immediately.
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But sometimes through sheer, dumb luck one makes it through.
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Right at this moment you probably have a few million cells patrolling your body with the potential to trigger an autoimmune disease.
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Another way to trigger autoimmunity is through our enemies: Some bacteria and viruses have evolved proteins that are extremely similar to the ones in your own body.
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Because they just have to if they want to interact with your cells – and to stay hidden.
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We see this everywhere in nature, from moths that look like bark or crocodiles that disappear in muddy water.
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For bacteria your tissue is a hostile jungle full of angry predators looking for them.
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So they try to cover themselves in shapes that are very similar to your proteins.
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But both of these things are not enough, the final ingredient is a trigger event.
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And a colossal case of bad luck.
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The War That Never Ends The trigger can be anything that activates your defenses.
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A common cold, the flu, a tiny wound.
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Any sort of infection floods your body with cytokines, signals that tell your body “this is a real fight, take this seriously” which truly wakes up your immune system.
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Intelligence cells start to gather proteins – shapes – from the battlefield.
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These shapes are the physical information of what is going on and are carried to your lymph nodes, information distribution centers.
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Here, your heavy weapons – T cells – pass through, taking a look at the shapes that are being presented here.
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If they recognize the shape of an invader they activate the whole immune system and a few days later the attacker will be wiped out.
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But this time the worst things happen in the worst kind of way.
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Maybe an intelligence officer picked up a piece of one of your healthy cells that died in the battle, or maybe a bacteria had a protein pretty similar to one of yours. And by sheer, extremely bad luck, a few months ago a single T cell that can recognize this shape survived the murder university.
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And today exactly this T cell happened to pass exactly this lymph node and is activated.
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This single T cell now starts a big immune reaction against your own body.
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It clones itself thousands of times, gathers other cells for support and streams into your tissue.
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When the misguided immune cells arrive they see nothing but enemies!
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The proteins they are looking for are everywhere!
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Which can only mean that there is a full on invasion going on!
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They spread out and start attacking and killing your tissue.
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How bad is this?
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Well, it depends.
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There are more than 100 different autoimmune diseases and basically any tissue can be affected.
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In Multiple Sclerosis your immune cells are attacking the insulation of your nerve cells, making them sort of short circuit or slow down dramatically.
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Causing numbness, muscle cramps, problems with your vision and concentration.
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In Type 1 Diabetes your immune system kills the cells that produce your insulin in your pancreas, starving your cells of glucose and turning your blood into acid.
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In Rheumatoid Arthritis angry cells invade your joints and literally start to dissolve cartilage and bone.
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Lupus is a body-wide Blitzkrieg that attacks literally every part of your body causing painful, unpredictable and widespread destruction with a variety of bad symptoms.
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And almost all autoimmune diseases come with crushing fatigue and exhaustion.
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Because when you are sick, your immune system tells your body to shut down and rest.
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Even if the immune system is itself the attacker, it still sends out the same orders.
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It feels like you have the flu but the real enemy is your own body.
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The worst part about autoimmunity is that it never stops.
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Your immune system is a self enforcing machine of destruction.
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The more “enemies” your initial autoimmunity cells encounter the more cells they clone and activate.
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So its nature prevents lasting peace.
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Why is your Body allowing this?
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Most, if not all, autoimmune diseases have a genetic component but this is kind of weird.
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If some variants of genes are actively harmful to us, evolution should weed them out and make them less common.
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But up to one in ten people in the industrialized world suffers from them.
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So why did they stick around?
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Well when it comes to genes, we often have to work with trade offs – at their core autoimmune diseases always mean that your immune system is more aggressive – and while this is mostly bad, until recently in human history, this was pretty great.
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In the past infectious diseases were the most common cause of death.
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Terrible pandemics ravaged our cities regularly, sometimes decimating communities.
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Researchers analyzed DNA samples from London cemeteries before, during, and after the Black Death pandemic that killed about half of the population.
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They found that individuals with gene variants that increase the risk for Crohn’s disease, seemed to have died at a much lower rate.
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What helped them against a deadly disease back then might make us vulnerable to autoimmunity today.
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Evolution doesn’t care about perfect solutions, it is only looking for good enough.
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If variants made it more likely to survive the deadliest diseases, why care if down the line this might lead to something else?
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If you have an autoimmune disease you may only be alive because your ancestors carried these genes and survived a pandemic that wiped out their neighbours.
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And then a hot second ago we changed our world.
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Hygiene, antibiotics, vaccines and modern medicine revolutionized our lives and how we die.
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So much so that most of us don’t even think a lot about infectious diseases – and this is great.
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But now we are left with genes that make our immune systems more aggressive for no good reason.
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Add a bit of bad luck and all these billions of nuclear weapons and kamikaze bombers take aim at the wrong target: You.
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Your immune system isn’t the only part of yourself that can be turned against you.
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Data brokers are constantly collecting personal information like your name, address or information about your relatives.
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This data is valuable and can be sold to companies who want to show you ads that are tailored to you – but also more nefarious buyers who want to dox you, harass you, or even steal your identity.
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이 레슨의 어휘와 말하기 포인트
이 C1 수준 말하기 레슨은 영상 “When Your Body Attacks Itself – Autoimmune”을(를) 바탕으로 합니다. 가장 자주 반복되는 단어는 다음과 같습니다: cell, immune, disease, shape, protein. 이 영상에는 섀도잉할 문장 89개와 단어 1557개가 있습니다. 말하는 구간의 길이는 9:33입니다. 화자는 분당 약 163단어로, 일상 대화에 가까운 자연스러운 속도로 말합니다. 영어에서 가장 많이 쓰이는 3,000단어에 속하는 단어가 78%뿐이라 어휘가 어려운 편입니다.
이 영상의 핵심 어휘
영상에서 가장 어려운 단어 15개를 발음, 뜻과 함께 정리했습니다.
| 단어 | 발음 | 뜻 |
|---|---|---|
| autoimmune 형용사 | /ˌɔːtəʊɪˈmjuːn/ | 자가 면역(自家免疫)의 |
| autoimmunity 명사 | /ˌɔːtoʊɪˈmjuːnɪti/ | 자가 면역 |
| bacterium 명사 | /bækˈtɪəɹ.ɪəm/ | 세균, 박테리아 |
| variant 명사 | /ˈvæɹi.ənt/ | 변체, 변종 |
| colossal 형용사 | /kəˈlɑsəl/ | 거대하다 |
| kamikaze 명사 | /ˌkɑː.mɪˈkɑː.ziː/ | 가미카제, 다이아타리 |
| lymph 명사 | /lɪmf/ | 림프 |
| sclerosis 명사 | /skləˈɹəʊ.sɪs/ | 경화, 경화증 |
| clone 명사 | /kloʊn/ | 클론 |
| node 명사 | /noʊd/ | 결절 |
| bomber 명사 | /ˈbɑmɚ/ | 폭격기 |
| broker 명사 | /ˈbɹoʊkɚ/ | 중개인, 브로커 |
| wipe 동사 | /waɪp/ | 닦다 |
| ancestor 명사 | /ˈæn.sɛs.tɚ/ | 조상, 선조 |
| barista 명사 | /bəˈɹis.tə/ | 바리스타 |
영상에 나오는 구동사
| 단어 | 발음 | 뜻 |
|---|---|---|
| wipe out 동사 | 무찌르다 | |
| pick up 동사 | 줍다 | |
| wake up 동사 | /ˌweɪk ˈʌp/ | 눈뜨다, 일어나다 |
주의할 발음
화자는 doesn't, don't, isn't 같은 축약형과 약화된 형태를 4번 사용합니다. 들리는 대로 짧게 발음하세요.
- “th” 소리: thyroid /ˈθaɪ.ɹɔɪd/, ruthless /ˈɹuːθləs/
- “sh”와 “zh” 소리: nutshell /ˈnʌt.ʃɛl/, infectious /ɪnˈfɛk.ʃəs/, sheer /ʃɪɚ/, revolutionize /ˌɹɛv.əˈl(j)u.ʃəˌnaɪz/, insulation /ˌɪnsəˈleɪʃən/
- 긴 단어 — 강세 위치에 주의: autoimmunity /ˌɔːtoʊɪˈmjuːnɪti/, kamikaze /ˌkɑː.mɪˈkɑː.ziː/, industrialize /ɪnˈdʌstɹiəlaɪz/, manageable /ˈmænəd͡ʒəb(ə)l/, nefarious /nɪˈfɛəɹi.əs/
한국어 화자가 어려워하는 소리:
- /f/ — ㅍ(/p/)으로 바꾸지 말고 윗니를 아랫입술에 대기: lymph /lɪmf/, infectious /ɪnˈfɛk.ʃəs/, nefarious /nɪˈfɛəɹi.əs/, terrify /ˈtɛɹɪfaɪ/, flock /flɑk/
- /v/ — ㅂ(/b/)과 구별하기: activate /ˈæktɪˌveɪt/, variant /ˈvæɹi.ənt/, evolve /ɪˈvɑlv/, dissolve /dɪˈzɑlv/, invader /ɪnˈveɪ.də(ɹ)/
- /z/ — ㅈ이 아니라 성대를 울리는 /s/: kamikaze /ˌkɑː.mɪˈkɑː.ziː/, dissolve /dɪˈzɑlv/, exhaustion /ɪɡˈzɔːs.t͡ʃən/, industrialize /ɪnˈdʌstɹiəlaɪz/, omnipresent /ˌɔmnɪjˈpɹɛz(ə)nt/
이 영상으로 연습하는 방법
- 먼저 말하지 않고 영상을 끝까지 듣고 모르는 단어를 적어 둡니다.
- 0.75배속으로 한 문장씩 섀도잉을 시작하고, 익숙해지면 보통 속도로 돌아갑니다.
- 자신의 목소리를 녹음해 원본과 비교하고, autoimmune, autoimmunity, bacterium 같은 단어에 특히 주의합니다.
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.