Pratique du Shadowing: Why sitting is bad for you - Murat Dalkilinç - Apprendre l'anglais à l'oral avec YouTube

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Right now, you're probably sitting down to watch this video and staying seated for a few minutes to view it is probably okay.
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41 phrases
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Right now, you're probably sitting down to watch this video and staying seated for a few minutes to view it is probably okay.
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But the longer you stay put, the more agitated your body becomes.
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It sits there counting down the moments until you stand up again and take it for a walk.
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That may sound ridiculous.
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Our bodies love to sit, right?
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Not really. Sure, sitting for brief periods can help us recover from stress or recuperate from exercise.
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But nowadays, our lifestyles make us sit much more than we move around, and our bodies simply aren't built for such a sedentary existence.
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In fact, just the opposite is true.
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The human body is built to move, and you can see evidence of that in the way it's structured.
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Inside us are over 360 joints, and about 700 skeletal muscles that enable easy, fluid motion.
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The body's unique physical structure gives us the ability to stand up straight against the pull of gravity.
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Our blood depends on us moving around to be able to circulate properly.
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Our nerve cells benefit from movement, and our skin is elastic, meaning it molds to our motions.
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So if every inch of the body is ready and waiting for you to move, what happens when you just don't?
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Let's start with the backbone of the problem, literally.
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Your spine is a long structure made of bones and the cartilage discs that sit between them.
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Joints, muscles and ligaments that are attached to the bones hold it all together.
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A common way of sitting is with a curved back and slumped shoulders, a position that puts uneven pressure on your spine.
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Over time, this causes wear and tear in your spinal discs, overworks certain ligaments and joints, and puts strain on muscles that stretch to accommodate your back's curved position.
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This hunched shape also shrinks your chest cavity while you sit, meaning your lungs have less space to expand into when you breath.
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That's a problem because it temporarily limits the amount of oxygen that fills your lungs and filters into your blood.
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Around the skeleton are the muscles, nerves, arteries and veins that form the body's soft tissue layers.
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The very act of sitting squashes, pressurizes and compresses, and these more delicate tissues really feel the brunt.
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Have you ever experienced numbness and swelling in your limbs when you sit?
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In areas that are the most compressed, your nerves, arteries and veins can become blocked, which limits nerve signaling, causing the numbness, and reduces blood flow in your limbs, causing them to swell.
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Sitting for long periods also temporarily deactivates lipoprotein lipase, a special enzyme in the walls of blood capillaries that breaks down fats in the blood, so when you sit, you're not burning fat nearly as well as when you move around.
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What effect does all of this stasis have on the brain?
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Most of the time, you probably sit down to use your brain, but ironically, lengthy periods of sitting actually run counter to this goal.
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Being stationary reduces blood flow and the amount of oxygen entering your blood stream through your lungs.
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Your brain requires both of those things to remain alert, so your concentration levels will most likely dip as your brain activity slows.
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Unfortunately, the ill effects of being seated don't only exist in the short term.
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Recent studies have found that sitting for long periods is linked with some types of cancers and heart disease and can contribute to diabetes, kidney and liver problems.
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In fact, researchers have worked out that, worldwide, inactivity causes about 9% of premature deaths a year.
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That's over 5 million people.
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So what seems like such a harmless habit actually has the power to change our health.
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But luckily, the solutions to this mounting threat are simple and intuitive.
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When you have no choice but to sit, try switching the slouch for a straighter spine, and when you don't have to be bound to your seat, aim to move around much more, perhaps by setting a reminder to yourself to get up every half hour.
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But mostly, just appreciate that bodies are built for motion, not for stillness.
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In fact, since the video's almost over, why not stand up and stretch right now?
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Treat your body to a walk.
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It'll thank you later.
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About This Lesson: The Hidden Dangers of Sitting

In this eye-opening video, "Why sitting is bad for you" by Murat Dalkilinç, you'll explore the surprising reasons why our modern sedentary lifestyles are detrimental to our health. The presenter clearly explains how prolonged sitting negatively impacts various parts of the body, from your spine and muscles to your circulation and even your brain function. You'll learn why the human body is designed for movement and the simple, intuitive solutions to counteract the risks of inactivity.

This lesson is excellent for your English speaking practice, especially if you want to discuss health, biology, and lifestyle choices. You'll practice understanding detailed explanations, improving your listening comprehension, and developing your ability to articulate cause-and-effect relationships in English. Enhancing your vocabulary related to health and anatomy will significantly boost your English fluency.

Key Vocabulary & Phrases

  • Sedentary existence: (adjective + noun) A lifestyle characterized by a lot of sitting and little physical activity. Example from video: "our lifestyles make us sit much more than we move around, and our bodies simply aren't built for such a sedentary existence."
  • Built for motion/movement: (phrase) Designed or naturally suited for physical activity. Example from video: "The human body is built to move."
  • Uneven pressure: (adjective + noun) Force that is not equally distributed, often leading to strain or damage. Example from video: "a position that puts uneven pressure on your spine."
  • Wear and tear: (idiom) Damage or deterioration resulting from ordinary use. Example from video: "Over time, this causes wear and tear in your spinal discs."
  • Feel the brunt: (idiom) To experience the worst part or full impact of something. Example from video: "these more delicate tissues really feel the brunt."
  • Run counter to this goal: (phrase) To go against or be contrary to a specific objective. Example from video: "lengthy periods of sitting actually run counter to this goal."
  • Mounting threat: (adjective + noun) An increasing or growing danger or problem. Example from video: "the solutions to this mounting threat are simple and intuitive."
  • Treat your body to [something]: (idiomatic phrase) To give your body something enjoyable or beneficial. Example from video: "Treat your body to a walk."

Practice Tips for This Video

To maximize your learning from Murat Dalkilinç's informative talk, use the shadowing technique with these specific tips:

  • Focus on Clarity and Pace: The speaker has a clear, measured pace, which is ideal for shadowing. Try to match his rhythm and intonation, especially when he lists consequences or explains processes. This will significantly improve your pronunciation practice and overall clarity.
  • Master Scientific Terminology: Pay close attention to the pronunciation of words like "skeletal muscles," "spinal discs," "lipoprotein lipase," and "chest cavity." Repeat these terms multiple times until they feel natural.
  • Emphasize Cause and Effect: The video is rich with cause-and-effect statements (e.g., "This causes wear and tear...", "meaning your lungs have less space...", "which limits nerve signaling..."). Practice mirroring the speaker's emphasis and linking words to clearly articulate these connections, enhancing your English fluency.
  • Connect to IELTS Speaking: This topic is highly relevant for the IELTS speaking test, particularly Part 3 where you discuss broader issues. Practice summarizing the video's arguments and forming your own opinions on healthy habits and public health. For instance, how would you answer a question about the importance of physical activity in modern society?
  • Practice Expressive Delivery: Notice how the speaker uses his voice to convey the seriousness of the topic (e.g., "That's a problem because...", "Unfortunately, the ill effects..."). Try to imitate this expressive delivery to add naturalness to your own English speaking practice.

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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