Pratique du Shadowing: Do You Really Need 8 Hours of Sleep Every Night? | Body Stuff with Dr. Jen Gunter | TED - Apprendre l'anglais à l'oral avec YouTube

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Sleep is so important.
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Sleep is so important.
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We need it to live.
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And when we can't sleep, we're desperate for help.
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[Body Stuff with Dr. Jen Gunter] But lately, our fascination with sleep feels as if it's taken on an urgency.
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Do a quick internet search for sleep and you'll find a slew of articles about how to make your sleep perfect.
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New gadgets, fancy alarm clocks, stay away from blue light.
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There are lots of services, products and advice columns that tell us we're sleeping wrong.
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Not enough, not quality sleep, wrong position.
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Even worse, you might find scary messaging claiming that if you're not sleeping right your life is going to be shorter, you're going to get all kinds of diseases.
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One of the biggest worries we have about our sleep is that we're not getting enough and that anything less than seven hours a night means that we’re doomed to bad health, everything from high blood pressure to Alzheimer’s disease.
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But there are two flaws with this kind of messaging.
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The first flaw is that it's not completely accurate.
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Seven to eight hours of sleep, while recommended for adults, is just an average.
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And while messages have to be simplified for health communication to the public, sometimes important nuances get lost.
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So yes, it's true that not getting enough sleep in the long term is associated with health problems like cardiovascular disease, diabetes and depression.
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But fixating solely on seven to eight hours ignores the fact that there's a range of sleep that people need.
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The duration of a good night's sleep can be different for different people.
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Some adults need eight, but some are just fine on six.
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The second flaw with this kind of doomsday messaging is that it can be counterproductive, especially for people who do have trouble sleeping.
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For instance, in 2019, it was estimated that 21 percent of adults in the US were wearing sleep tracking devices.
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And that number is probably growing.
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And I get it.
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It's fascinating to see how much sleep you've gotten each night and to know what part of your night was spent in deep sleep or dreaming.
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But having all of that sleep data is causing some people to become obsessed with it, so much so that it’s leading to a condition some call orthosomnia: a preoccupation with the constant need to achieve perfect sleep.
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And this condition, ironically, is causing more sleep problems.
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Now orthosomnia might be an extreme example, but the anxiety of not getting enough sleep is keeping some of us up at night.
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So here's what some experts are saying.
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Stop fixating on the number because that can lead to unrealistic expectations of sleep.
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According to Dr. Colleen Carney, a psychologist and the head of the Ryerson University Sleep Lab, the basic questions you should ask yourself are: Do I feel reasonably well-rested during the day?
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Do I generally sleep through the night without disturbances?
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Or, if I wake, do I fall back asleep easily?
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Can I stay awake through the day without involuntarily falling asleep?
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If your answers are yes to all three, you probably don't need to worry about your sleep.
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And if you're struggling with your sleep, instead of buying expensive blue light filters or fancy sleep trackers, try talking with your doctor to make sure there aren't any medical conditions that need to be explored first.
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Then try evidence-based recommendations laid out by the American Academy of Sleep Medicine.
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What's really cool is that there's a highly effective therapy called cognitive behavioral therapy for insomnia, or CBT-I, It doesn’t have any medications involved.
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And it has a really low failure rate.
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About This Lesson

In this insightful video, Dr. Jen Gunter challenges common misconceptions about sleep, particularly the widely held belief that everyone needs exactly seven to eight hours per night. She dissects the "doomsday messaging" surrounding sleep and introduces interesting concepts like orthosomnia – the unhealthy obsession with achieving "perfect" sleep – which ironically can cause more sleep problems. Dr. Gunter emphasizes that individual sleep needs vary and provides practical, self-assessment questions to help you determine if you're getting enough quality sleep, rather than fixating on a number. She also highlights effective, medication-free treatments like Cognitive Behavioral Therapy for Insomnia (CBT-I).

For English learners, this video offers an excellent opportunity for English speaking practice. You will:

  • Expand Vocabulary: Learn medical and wellness terms related to sleep, health concerns, and psychological conditions, as well as phrases for challenging common beliefs.
  • Practice Grammar: Work on expressing caution, describing symptoms, offering advice, and presenting evidence-based arguments.
  • Develop Speaking Contexts: Prepare to discuss personal health habits, debunk myths, and engage in informative conversations, useful for everyday interactions and more formal settings like IELTS speaking.

Key Vocabulary & Phrases

  • taken on an urgency: To have become very important or pressing, often quickly.
  • a slew of articles: A large number or quantity of something, typically articles or items.
  • doomsday messaging: Communication that warns of terrible outcomes or disaster, often used to instill fear.
  • counterproductive: Having the opposite effect to what was intended or desired.
  • orthosomnia: A preoccupation with the constant need to achieve perfect sleep, often caused by tracking devices.
  • fixating solely on: Focusing exclusively or obsessively on one particular thing, often to the exclusion of others.
  • evidence-based recommendations: Advice or guidelines that are supported by scientific research and data, indicating their effectiveness.

Practice Tips for This Video

This video is an ideal resource for improving your English fluency and pronunciation practice. Dr. Jen Gunter speaks with remarkable clarity and a moderate pace, making it perfect for the shadowing technique.

  • Speaking Speed: Dr. Gunter maintains a steady, articulate pace. Focus on matching her rhythm and ensuring each word is clearly pronounced. This will help you develop a natural speaking flow.
  • Accent & Intonation: The speaker has a clear American accent. Pay close attention to her intonation, especially when she is introducing a new point or expressing skepticism about common beliefs. Mimicking this will make your speech sound more natural and engaging.
  • Vocabulary & Terminology: The video introduces specific terms like "orthosomnia" and "CBT-I." Pause and repeat these words to ensure you understand and can pronounce them correctly. Understanding the context will also aid your comprehension.
  • Mimic Explanations: Dr. Gunter excels at explaining complex ideas simply. Practice shadowing entire sentences or short paragraphs where she defines a concept or debunks a myth. This will enhance your ability to explain topics clearly, a vital skill for IELTS speaking.
  • Practice Paraphrasing: After listening to a section, pause the video and try to summarize Dr. Gunter's main points in your own words. This actively engages your brain, moving beyond mere repetition to enhance your spontaneous speaking abilities and overall English fluency.

Qu'est-ce que la technique du Shadowing ?

Le Shadowing est une technique d'apprentissage des langues fondée sur la science, développée à l'origine pour la formation des interprètes professionnels. Le principe est simple mais puissant : vous écoutez de l'anglais natif et le répétez immédiatement à voix haute — comme une ombre suivant le locuteur avec un décalage de 1 à 2 secondes. Les recherches montrent une amélioration significative de la précision de la prononciation, de l'intonation, du rythme, des liaisons, de la compréhension orale et de la fluidité.

Comment pratiquer efficacement sur ShadowingEnglish

  1. Choisissez votre vidéo : Choisissez une vidéo YouTube avec un anglais clair et naturel. Les TED Talks, BBC News, scènes de films, podcasts sont parfaits. Collez l'URL dans la barre de recherche.
  2. Écoutez d'abord, comprenez le contexte : La première fois, gardez la vitesse à 1x et écoutez simplement. Ne répétez pas encore. Concentrez-vous sur la compréhension du sens.
  3. Configurez le mode Shadowing :
    • Mode d'attente : Choisissez +3s ou +5s — après chaque phrase, la vidéo se met automatiquement en pause pour que vous puissiez répéter.
    • Sync sous-titres : Les sous-titres YouTube peuvent parfois être décalés. Utilisez ±100ms pour les aligner.
  4. Faites du Shadowing à voix haute (la pratique essentielle) : Dès qu'une phrase est jouée — ou pendant la pause — répétez-la à voix haute, clairement et avec confiance. Imitez le rythme, les accents et l'intonation du locuteur.
  5. Augmentez le défi : Une fois à l'aise avec un passage, augmentez la vitesse à <code>1.25x</code> ou <code>1.5x</code>. Pratiquez 15 à 30 minutes par jour pour des résultats visibles en quelques semaines.

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