Pratique du Shadowing: Vitamin D Testing Challenges - Apprendre l'anglais à l'oral avec la vidéo
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so in this video i want to touch on vitamin d testing challenges okay the big the big problem with vitamin d is that there's no agreed upon value of what you should have in your
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blood i mean they have an idea or estimation and we can range all the way from this value right here to this value right here depending on what units you use could range from this value to this
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value i guess you can take an average of these numbers depending on what units you're measuring vitamin d from also the institute of medicine will tell you that you need between 600 to 800 IUS
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of vitamin d every day yet the endocrinology society will say you need a thousand to 200 IUS every day so again there's this there's not a lot of agreement on how much you need
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or how much should be in your blood a couple things i want to talk about that are very very important though there's two forms of vitamin d one is an inactive form 25 hydroxy vitamin d so it's like the precursor to the active
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form which is 125 dihydroxy vitamin d so this is the active form this is the inactive form the way this works and by the way most of the vitamin d in your blood is
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the pre-inactive version and many times what they're testing is they're testing 25 hydroxy vitamin d they're testing the
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precursor or the inactive vitamin d okay put that to the side we'll come back to it so what happens is you have the pre-vitamin d that goes through the body and goes
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through the liver and from the liver it then goes to the kidney the kidney is the primary site for conversion of the inactive to the active version of
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vitamin d what if there is damage to the kidney you're going to lose your conversion capacity and how many people have damage to the kidney well what damage is a kidney
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diabetes is a is a big thing but also insulin resistance what percentage of the population has insulin resistance i would say between
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65 to 75 of the entire population that is going to alter the ability for the kidney to convert the inactive to the active
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when you get your test back from the lab that says your 5-hydroxy vitamin d is within normal levels well what about the active form are you getting a 100 conversion by the kidney
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is there any problem with the kidney that's one variable it's very common to have people with a defect in the vitamin d receptors called polymorphism
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and even though you may have normal vitamin d in your blood it's not being activated because at the receptor level it's not working
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also if there's not enough bile in the body you won't get the conversion and if there's liver damage you won't be able to produce the bile to make the conversion
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if there's no gallbladder there you could be bile deficient so you're not going to have enough bile to make the conversion we already mentioned about insulin resistance if there's inflammation in the body that can lower your ability to convert vitamin d
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if there's malabsorption gut problems let's say you had a series of antibiotics as a child and that created scarring of your in your colon that can create a decreased capacity for conversion if
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you had a gastric bypass that could also alter your ability to convert vitamin d so as you can see there are many different variables so you have to look at the big picture what i tell people is to err on the side
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of taking more vitamin d than less and make sure you have enough bile so you can actually get the absorption all right i hope i didn't add more confusion but i wanted to clear
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up some of these variables and the point of this video was just to mention that just because this right here is normal doesn't necessarily mean it's being fully converted
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to the active form hey we're back with another amazing recipe no grains no sugar totally keto there's no
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suffering in keto absolutely not karen and it's an immune system builder absolutely you have to check this out i think you should hurry up watch the recipe and make it yourself it's just so easy
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to be keto but is it simple it's super simple we hope you enjoy making it as much as we are enjoying eating it
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Vocabulaire et conseils d’expression pour cette leçon
Cette leçon d’expression orale de niveau B2 s’appuie sur la vidéo « Vitamin D Testing Challenges ». Les mots qui reviennent le plus souvent : vitamin, kidney, conversion, inactive, active. Cette vidéo contient 24 phrases et 759 mots à répéter en shadowing. La partie parlée dure 4:58. Le locuteur parle à un rythme naturel d’environ 153 mots par minute, proche d’une conversation courante. Seuls 81 % des mots font partie des 3 000 mots les plus courants en anglais, le vocabulaire est donc exigeant.
Vocabulaire clé de cette vidéo
Les 15 mots les plus avancés de la vidéo, avec leur prononciation et leur sens :
| Mot | Prononciation | Sens |
|---|---|---|
| vitamin nom | /ˈvɪt.ə.mɪn/ | vitamine |
| kidney nom | /ˈkɪdni/ | rein |
| inactive adjectif | /ɪnˈæktɪv/ | inactif |
| boil verbe | /bɔɪ(ə)l/ | faire bouillir, porter à ébullition |
| convert verbe | /kənˈvɝt/ | convertir |
| insulin nom | /ˈɪnsəlɪn/ | insuline |
| variable adjectif | [ˈvæɹ.i.ə.bl̩] | variable |
| precursor nom | /pɹɪˈkɜː.sə/ | précurseur, précurseuse |
| receptor nom | /ɹɪˈsɛp.tə/ | récepteur |
| altar nom | /ˈɔl.tɚ/ | autel |
| depend verbe | /dɪˈpɛnd/ | dépendre |
| endocrinology nom | /ˌɛn.də.kɹɪˈnɑ.lə.d͡ʒi/ | endocrinologie |
| estimation nom | /ˌɛs.təˈmeɪ.ʃən/ | estimation |
| gastric adjectif | /ˈɡæstɹɪk/ | gastrique |
| malabsorption nom | malabsorbtion |
Les verbes à particule que vous entendrez
| Mot | Sens |
|---|---|
| go through verbe | traverser |
Prononciation à surveiller
Le locuteur utilise 12 contractions et formes réduites, comme they're, you're, won't. Prononcez-les sous leur forme courte, telles que vous les entendez.
- Les sons « sh » et « zh »: deficient /dɪˈfɪʃənt/, estimation /ˌɛs.təˈmeɪ.ʃən/, absorption /æbˈsɔɹp.ʃn̩/, inflammation /ɪnfləˈmeɪ̯ʃən/, confusion /kənˈfjuːʒən/
- Mots longs — placez bien l’accent: endocrinology /ˌɛn.də.kɹɪˈnɑ.lə.d͡ʒi/, estimation /ˌɛs.təˈmeɪ.ʃən/, polymorphism /pɑliˈmɔɹfɪz(ə)m/, antibiotic /ˌæn.taɪ.baɪˈɑ.tɪk/, inflammation /ɪnfləˈmeɪ̯ʃən/
Les sons difficiles pour les francophones :
- /r/ anglais — langue recourbée, sans frotter la gorge: variable [ˈvæɹ.i.ə.bl̩], precursor /pɹɪˈkɜː.sə/, receptor /ɹɪˈsɛp.tə/, endocrinology /ˌɛn.də.kɹɪˈnɑ.lə.d͡ʒi/, gastric /ˈɡæstɹɪk/
Comment s’entraîner avec cette vidéo
- Écoutez la vidéo en entier une fois sans parler et notez les mots que vous ne connaissez pas.
- Commencez à la vitesse 0,75×, répétez phrase par phrase, puis revenez à la vitesse normale quand cela devient facile.
- Enregistrez-vous et comparez avec l’original, en faisant attention à des mots comme vitamin, kidney, inactive.
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.