Pratique du Shadowing: Why Do We Feel Hungry? | What Happens in Your Body When You're Hungry? | Ghrelin Hormone | Dr Binocs - Apprendre l'anglais à l'oral avec YouTube

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Kitties hungry!
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Kitties hungry!
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You got to be kidding!
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You just ate a giant cheese sandwich five minutes ago!
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But Kittie tummy still feels empty!
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Hmm, maybe it's not your tummy that's hungry, but something else.
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While I whip something up, let's explore this mystery.
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Why do we feel hungry?
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Zoom in!
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Have you ever heard your stomach growl in class and thought,
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I must be starving?
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Turns out, that familiar rumble might not be what you think.
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Hunger is way more than just an empty tummy.
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It's a whole body message,
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written in hormones and nerves and sent straight to your brain's snack station.
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Let's rewind to a couple of hours after lunch.
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Your body gets to work like a clean up crew.
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A special set of contractions called the Migrating Motor Complex.
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MMC begins flushing leftovers through your intestines.
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This tidy up job takes about two hours.
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As the final cleaning wave rolls through,
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a hormone called MOTILIN gets released.
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It's the one responsible for that rumble, what scientists call borborigibus.
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But your brain doesn't just respond to sound.
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A sneaky little hormone called ghrelin,
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your body's hunger text message is made in your stomach and travels to your brain's hypothalamus.
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Where it rings the dinner bell ghrelin activates special neurons called AGRP neurons
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which are key players in your body's hunger signaling system making
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you want to devour anything you can get your hands on but here's something even cooler
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your stomach doesn't always call the shots sometimes hunger starts in your blood When important nutrients like glucose,
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amino acids or fatty acids dip too low,
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your blood vessels send signals to the brain's huge center.
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So, even if your stomach and intestines are still working just fine,
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your body senses the nutrients shortage and says,
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we are low on fuel.
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But wait, here's the weird part.
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You can be full and still feel hungry.
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Why?
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Because hunger doesn't always mean need.
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Sometimes it's about want.
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The smell of pizza or the sizzle of rice can make your brain light up with cravings.
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Even thinking about food boosts ghrelin.
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It's like your brain gets FOMO when it sees a snack.
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Your body has a whole communication system to manage all this.
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The vagus nerve sends updates about how full your stomach is and how many nutrients are in your blood.
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Meanwhile, levels of leptin, a hormone that tells you to stop eating,
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drop when you haven't eaten for a while.
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If your blood sugar, your brain's favourite fuel gets too low,
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your body flips the panic switch.
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It releases cortisol and adrenaline,
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stress hormones that give you energy,
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but also make you moody or hangry.
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That's your body saying, emergency, feed me now.
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And here's another twist.
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Sometimes, we crave junk food because it makes us feel good.
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Fatty, sugar treats release chemicals in your brain that create a tiny high just like rewards.
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This used to help our ancestors survive famines but today it's one reason behind obesity.
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So next time you're hungry ask yourself is this real hunger or brain hunger?
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Either way, your body is sending messages.
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Some for fuel, some for fun.
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Just make sure to listen wisely.
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Trivia time!
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Did you know sickness can make you lose your appetite on purpose?
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Yes!
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When you are sick, your immune system releases chemicals called cytokines that reduce hunger.
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so your body can focus on fighting infection.
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Sketching time!
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Today's sketch of the day goes to Vihan Nhatikan.
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Hope you had food for thought today.
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Until next time, it's me, Dr. Binox, zooming out!
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Dummy fool!
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Yikki school!
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Ugh, never mind.

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About This Lesson

In this lesson, you will explore the fascinating topic of hunger and the physical processes that occur in your body when you experience it. By watching the video, you will gain insights into how hormones like ghrelin and motilin influence your feelings of hunger. This lesson not only provides scientific knowledge but also enhances your english speaking practice as you discuss these concepts and their implications. You will practice using relevant vocabulary and phrases, making your learning experience both engaging and informative.

Key Vocabulary & Phrases

  • Hunger - the physical sensation of needing food.
  • Ghrelin - a hormone responsible for signaling hunger to the brain.
  • Motilin - a hormone that aids in moving food through the digestive system.
  • Vagus nerve - a nerve that communicates fullness signals from the stomach to the brain.
  • Leptin - a hormone that helps regulate energy balance by inhibiting hunger.
  • Cravings - strong desires for specific foods, often influenced by sights and smells.
  • Nutrients - essential substances that provide nourishment for the body.
  • Blood sugar - the concentration of glucose in the blood, which affects energy levels.

Practice Tips

To effectively enhance your english speaking practice using this video, consider employing the shadowing technique. This involves listening to the video's dialogue and repeating it in real-time, mirroring the speaker's tone and pace. To adapt to Dr. Binocs' engaging style, focus on the following tips:

  • Start Slow: Initially, play the video at a slower speed if necessary. This will help you catch each word clearly and build confidence.
  • Pause Often: After each key concept or phrase, pause the video to repeat what you've heard. This ensures you grasp the information while practicing your pronunciation and intonation.
  • Focus on Inflection: Pay attention to how emotions and excitement are expressed through voice modulation. Try to mimic this aspect as you practice.
  • Use a Notebook: Jot down unfamiliar words or phrases you encounter. This will enrich your vocabulary and can be used in your own conversations about topics like hunger or health.
  • Engage with Others: If possible, discuss what you've learned with a partner or in a study group. This can be especially useful for IELTS speaking practice, as it encourages real-time dialogue.

By consistently practicing with this engaging learn english with youtube lesson, you will not only improve your vocabulary but also enhance your overall speaking skills. Perfecting the art of shadowing will contribute significantly to your fluency and confidence in the English language.

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.

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