쉐도잉 연습: What lack of sleep does to the teenage brain - Wendy Troxel - YouTube로 영어 말하기 배우기

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It's six o'clock in the morning, pitch black outside.
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It's six o'clock in the morning, pitch black outside.
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My 14-year-old son is fast asleep in his bed.
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I flip on the light and physically shake the poor boy awake.
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Because I know that, like ripping off a band-aid,
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it's better to get it over with quickly.
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Sound brutal, but perhaps familiar.
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Every morning I ask myself, how can I?
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knowing what I know, be doing this to my own son.
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You see, I'm a sleep researcher.
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So I know that I'm depriving my son of the sleep he desperately needs as a rapidly growing teenager.
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I also know that by waking him up hours before his natural biological clock tells him he's ready,
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I'm literally robbing him of the type of sleep most associated with learning,
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memory consolidation, and emotional processing.
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But it's not just my kid that's being deprived of sleep.
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Sleep deprivation among American teenagers is an epidemic.
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Only about one in ten gets the eight to ten hours of sleep per night recommended by sleep scientists and pediatricians.
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The major factor preventing teens from getting the sleep they need is a matter of public policy.
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Across the country, many schools are starting around 7.30 a.m or earlier,
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despite the fact that major medical organizations recommend that middle and high schools start no earlier than 8.30 a.m.
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These early start policies have a direct effect on how little sleep American teenagers are getting.
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They're also pitting teenagers in a fundamentally unwinnable fight against their own bodies.
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Around the time of puberty,
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teenagers experience a delay in their biological clock,
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which determines when we feel most awake and when we feel most sleepy.
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This is driven in part by a shift in the release of the hormone melatonin.
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Teenagers' bodies wait to start releasing melatonin until around 11 p.m.,
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which is two hours later than what we see in adults or younger children.
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This means that waking a teenager up at 6 a.m is the biological equivalent of waking an adult up at 4 a.m.
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Now on the unfortunate days when I have to wake up at 4 a.m., I'm a zombie.
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Functionally useless.
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I can't think straight.
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I'm irritable.
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And I probably shouldn't be driving a car.
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But this is how many American teenagers feel every single school day.
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Many of the, shall we say,
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unpleasant characteristics that we chalk up to being a teenager,
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moodiness, irritability, laziness, depression, could be a product of chronic sleep deprivation.
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For many teens battling chronic sleep loss,
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their go-to strategy to compensate is consuming large quantities of caffeine in the form of bainty frappuccinos or energy drinks and shots.
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So essentially, we've got an entire population of tired but wired youth.
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Advocates of sleep-friendly start times know that adolescence is a period of dramatic brain development,
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particularly in the parts of the brain that are responsible for those higher-order thinking processes,
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including reasoning, problem-solving, and good judgment.
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In other words, the very type of brain activity that's responsible for reining in those impulsive
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and often risky behaviors that are so characteristic of adolescence.
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They know that like the rest of us,
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when teenagers don't get the sleep they need,
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their brains, their bodies and behavior suffer.
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They can't concentrate, their attention plummets,
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and many will even show behavioral signs that mimic ADHD.
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But the consequences of teen sleep loss go well beyond the classroom,
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sadly contributing to many of the mental health problems that skyrocket during adolescence.
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In our work with teens from LA Unified School District,
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we found that teens with sleep problems were 55% more likely to have used alcohol in the past month.
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In another study with over 30,000 high school students,
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they found that for each hour of lost sleep,
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there was a 38% increase in feeling sad or hopeless and a 58% increase in teen suicide attempts.
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And if that's not enough,
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teens who skimp out on sleep are at increased risk for a host of physical health problems that plague our country,
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including obesity, heart disease, and diabetes.
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Then there's the risk of putting a sleep-deprived teen behind the wheel.
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Studies have shown that getting five hours
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or less of sleep per night is the equivalent of driving with a blood alcohol content above the legal limit.
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Researchers in this area have produced tremendous science showing the benefits of later start times.
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The findings are unequivocal.
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Teens from districts with later start times get more sleep.
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They're more likely to show up for school.
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School absences dropped by 25% in one district,
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and they're less likely to drop out.
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Not surprisingly, they do better academically.
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Standardized test scores in math and reading go up by two to three percentage points.
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That's as powerful as reducing class sizes by one-third fewer students.
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Their mental and physical health improves and their families are happier.
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Even their communities are safer because car crash rates go down,
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a 70% reduction in one district.
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Now given these tremendous benefits,
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you might think, well this is a no-brainer, right?
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So why have we as a society failed to heed this call?
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Delaying start times presents many logistical challenges.
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Updating bus routes, increased transportation costs,
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impact on sports, care before or after school.
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But these are problems we have to work through.
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They are not valid excuses for failing to do the right thing for our children,
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which is to start middle and high schools no earlier than 8.30 a.m.
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Districts around the country, big and small,
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who have made this change,
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they've found that these fears are often unfounded and far outweighed by the tremendous benefits for our student health and performance,
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and our collective public safety.

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인기 동영상

이 레슨에 대해

웬디 트록셀(Wendy Troxel)의 "What lack of sleep does to the teenage brain" 동영상은 청소년 수면 부족의 심각성과 그들이 겪는 학업, 정신적, 신체적 문제에 대해 깊이 있게 다룹니다. 이 동영상은 단순히 잠이 부족하면 안 좋다는 것을 넘어, 청소년의 생체 시계와 학교 시작 시간 간의 불일치가 어떻게 전반적인 건강과 발달에 부정적인 영향을 미치는지를 과학적인 근거와 통계로 설득력 있게 설명합니다. 심지어 수면 부족이 ADHD 증상, 우울증, 자살 시도 증가, 교통사고 위험 상승과도 연관되어 있음을 밝히며, 늦춰진 등교 시간의 긍정적인 효과를 강조합니다.

이 동영상은 영어 말하기 연습을 위한 훌륭한 자료입니다. 특히 다음과 같은 부분에서 학습 효과를 높일 수 있습니다:

  • 어휘 주제: 청소년의 수면 문제, 생체 시계, 뇌 발달, 공공 정책, 건강 문제, 학업 성과 등 광범위한 과학 및 사회적 주제에 대한 전문 용어와 일상 표현을 학습할 수 있습니다.
  • 문법 패턴: 원인과 결과(cause and effect), 통계 및 연구 결과 제시, 설득력 있는 논증 구조 등 복잡한 아이디어를 명확하게 전달하는 문장 구조를 익힐 수 있습니다.
  • 말하기 맥락: 사회 문제에 대한 의견을 제시하고, 과학적 데이터를 활용하여 주장을 뒷받침하며, 청중을 설득하는 프레젠테이션 스킬을 연습할 수 있습니다. 이를 통해 영어 유창성을 향상시키는 데 큰 도움이 될 것입니다.

주요 어휘 및 표현

  • pitch black: 칠흑같이 어두운, 암흑 같은. (예: It's 6:00 in the morning, pitch black outside.)
  • deprive A of B: A에게 B를 빼앗다, 부족하게 하다. (예: I’m depriving my son of sleep he desperately needs.)
  • epidemic: 유행병; (나쁜 것의) 만연, 확산. (예: Sleep deprivation among American teenagers is an epidemic.)
  • biological clock: 생체 시계. (예: Teenagers experience a delay in their biological clock.)
  • chronic sleep deprivation: 만성 수면 부족. (예: Many of the unpleasant characteristics could be a product of chronic sleep deprivation.)
  • higher order thinking processes: 고차원적 사고 과정. (예: Parts of the brain responsible for those higher order thinking processes, including reasoning and problem solving.)
  • reining in impulsive behaviors: 충동적인 행동을 억제하다. (예: The brain activity that’s responsible for reining in those impulsive and often risky behaviors.)
  • unequivocal: 명백한, 분명한. (예: The findings are unequivocal.)

이 동영상 연습 팁

이 동영상을 활용한 쉐도잉은 쉐도잉 기법을 익히고 발음 연습을 하는 데 매우 효과적입니다. 웬디 트록셀의 스피치는 교육적이면서도 설득력 있는 강연의 모범을 보여줍니다. 다음 팁을 활용하여 학습 효과를 극대화하세요.

  • 말하기 속도: 연사는 비교적 안정적이고 명료한 속도로 말하며, 중요한 정보를 전달할 때 적절한 속도 조절을 합니다. 처음에는 전체 문장을 따라 하기보다 구나 절 단위로 끊어 쉐도잉을 시작한 후, 점차 전체 문장으로 확장해나가면서 연사의 자연스러운 리듬과 속도를 모방해 보세요.
  • 억양과 강조: 연사는 논거를 제시하거나 통계 데이터를 말할 때 특정 단어나 구절에 강세를 주어 메시지의 중요성을 부각합니다. 예를 들어, "55% more likely"나 "70% reduction"과 같은 부분에서 숫자를 강조하고, "epidemic"과 같은 핵심 단어에 힘을 실어 말하는 방식을 유심히 듣고 따라 해보세요. 이는 IELTS 스피킹 시험처럼 논리적 주장을 펼쳐야 하는 상황에서 매우 유용한 기술입니다.
  • 주제 난이도: 내용은 청소년 수면 부족이라는 다소 학술적이고 사회적인 주제이지만, 연사는 이를 매우 이해하기 쉽게 설명합니다. 복잡한 개념을 단순하고 명확하게 전달하는 방식을 관찰하고 모방하면서, 어려운 주제도 자신감 있게 설명하는 연습을 할 수 있습니다. 연구 결과나 통계를 인용하여 자신의 주장을 뒷받침하는 방식 또한 훌륭한 학습 포인트가 될 것입니다.

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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