シャドーイング練習: Why you’re always tired (+ food fixes!) 🍜 - 動画で英語スピーキングを学ぶ

It's a very defeating feeling when we want to get things done, but we feel completely drained.

And so luckily, there is an ever-growing body of research

that suggests nutrition and our food choices can actually help to fight fatigue during the day, and it can also help us sleep more quickly and soundly at night.

Fatigue can be brought on by different causes, like a decrease in physical activity or allergies or diabetes, But today we're specifically going to focus on how fatigue can be brought on

but also resolved by our food and beverage choices So myself

and one of our dietitian team members Sophia We geeked out

and we read a whole bunch of research papers on the link between nutrition

and fatigue And we've simplified what is known in the science

and that's what we're gonna share with you in today's video

We also created an uncomplicated article that's just gonna help to support this video even worse

if you want to delve deeper I'm gonna link that for you below, but for now, let's dive right in

Our bodies have an internal clock that impacts when we sleep and wake up and this is called our circadian rhythm.

Our circadian rhythm is very strongly linked to dark and light cycles.

So when it's more light outside, we tend to feel more awake and when it's dark, we tend to feel more tired.

Now there's an emerging field of science called chrononutrition, which studies how our eating behaviors can also influence the circadian rhythm.

Like some recent studies, for example, have shown that eating irregularly can throw our circadian rhythm out of sync, which can reduce the quality and duration of our sleep.

So ensuring that we eat at more or less the same times each day can actually help to synchronize our sleep-wake cycle, making us feel less tired.

Breakfast isn't for everyone, I get that.

But if you are somebody who kind of feels chronically fatigued throughout the day and you're also skipping breakfast, this could be the culprit.

So after we've had like a good night's rest, we've been fasting for many hours because we've been asleep.

And so when we wake up we're a bit depleted in energy

and so breaking the fast

Which is where the word breakfast actually comes from this helps

to kick start our day with some fuel There's been several studies

that have shown

that those who eat breakfast Especially high-fiber breakfasts are not only more alert throughout the day

But they also have improved memory a more positive mood

and even better bowel movements There was also this one interesting study of 498 students

that found that those who were skipping breakfast were also the ones reporting

that they weren't sleeping as well at night

so not only does eating breakfast kind of give us more

energy throughout the day it could potentially also help us sleep better

so it's a win-win this is what I love about nutrition it turns out

that we can very strategically compose our meals to help us feel more alert during the day

and to help us kind of fall asleep

and better stay asleep at night so let's explore why that's the case starting with protein.

So protein is made up of these building blocks that are called amino acids, one of which is tryptophan.

Tryptophan gets taken to our brain where it's absorbed and that gets converted to serotonin, which helps us feel good and calm.

That gets converted to melatonin, which is a hormone that actually helps our body kind of get ready for sleep.

The research showed that people who sleep well tended to consume more protein over the day than people who sleep poorly.

Notable plant-based food sources of tryptophan are soy, nuts and seeds, including cashew, pumpkin, and sunflower seeds, beans, leafy greens, mushrooms, and broccoli.

So it's important that we get enough protein so that we get the tryptophan, but it's worth noting that you don't want to get too much protein because that's been linked with decreasing sleep quality.

So no need to go out and take any protein powders as long as you're following a foods first approach.

Now let's delve into the carbs.

I have for simplicity's sake broken this up into two different groups, one of which we're going to call slow digesting carbs and one quick digesting carbs.

Quick digesting carbs are those like white bread, white pasta, and white rice.

Slow digesting carbs, on the other hand, are those that are higher in fiber.

So think whole grains, legumes, and vegetables.

What's interesting is that fruits have a bit of a mix of both.

Okay, so why is knowing all of this important?

In short, eating quick digesting carbs increases the amount of tryptophan that gets absorbed into our brain, which is then going to increase the chance that we're going to feel sleepy after eating.

And this is what's so cool we can use this knowledge to our benefit.

Like in the evening, we can increase the chances of becoming sleepy a few hours after dinner by having quick carbs with our dinner meal, or by having a piece of fruit with dinner

or as an evening snack just to help to increase the absorption of tryptophan into our brain.

On the other hand, if we want to avoid the after-lunch slump that we can experience sometimes, we can try to have slow digesting carbs with our meal instead of quick digesting carbs.

In addition to them just being great sources of fiber, these slow digesting carbs give us a more steady and continued release of energy throughout the day.

Being deficient in certain nutrients can really affect sleep.

This is something we found across a whole bunch of different research papers where if certain people are deficient, for example, in iron, magnesium,

potassium, zinc, selenium, beta- carotene, B vitamins, and vitamin C, E, and or D, they tend to sleep more poorly.

Now these vitamins and minerals, they take part in a whole bunch of the different complex reactions that occur in our body.

So like iron, for example, helps with the production of serotonin, whereas B vitamins help to create melatonin.

But there's no need to go out and supplement with these vitamins

and minerals unless your doctor has specifically advised that you do.

But that's namely because our philosophy is to follow a food first approach.

It is definitely possible and recommended

to get kind of the nutrients that we need just by eating a variety of different plant foods.

And so if you're curious on how to build your plate so that it is nutritionally balanced and adequate, you can check out our plate method video if you'd like and I'll link that for you here.

So we're gonna take a brief intermission to share two different evening snacks

that you can enjoy that can actually help to promote sleep.

And it's a great opportunity for us to put into practice what we've learned starting off with just simple banana

and nut butter.

Both bananas and almond butter contain tryptophan, and when you combine that with the quick digesting carbs that are in the banana, the tryptophan absorption in our brains is increased.

What's more is that these are both high in magnesium and bananas are high in potassium, which are a couple of the minerals that we just previously talked about.

Here's another option.

In place of having an evening tea that might have some caffeine in it, you could try out some warm soy milk instead.

This contains tryptophan, but also magnesium and calcium.

And if you'd prefer that the milk is flavored, you could try out our homemade golden latte mix.

It's really delicious and it makes for a comforting drink that also helps to promote sleep.

So we all know that caffeine, which is found in coffee most predominantly, but also in energy drinks and in tea, that this helps to make us feel more alert, right?

And this is because it's a stimulant that temporarily suppresses the buildup of sleep pressure, which is a mechanism that makes us tired.

Now, everyone is different, but in most adults, it takes the body about three to seven hours to break down half of the caffeine that's in our system.

This is known as its half-life.

So let's say that we drink our first cup of coffee at 9 a.m.

Five hours later at 2 p.m., there's still going to be half of that caffeine in our system.

And then another five hours later at 7 p.m., a quarter of what we drank at 9 a.m is still going to be in our system.

And then by the time it's midnight, we're going to have an eighth of that caffeine still in our system.

It's pretty interesting, right?

Now that you understand this it might make sense then

when you hear that like caffeine could just have such a lasting

effect even though it's something that we might have consumed many many hours before bed

so maybe what just is helpful to keep in mind is caffeine's half-life

and to try to have our caffeine early in the morning

or early in the afternoon and try to limit it later on in the evening

if we want to have a better night's rest water makes

up about 55 to 75 percent of our body weight and it's involved in so many different reactions in the human body, but a lot of adults just don't drink enough.

And even mild dehydration, according to the research, can cause things like fatigue and daytime sleepiness, mood changes, and a drop in cognitive performance.

So if you find that you're tired a lot during the day, it might help to just check in and see if you think you've been drinking enough.

Some telltale signs are your skin or lips might be dry, or your pee could be a bit dark in color.

And if it is, it's just a reminder to drink a little bit more.

100

I myself am terrible at remembering to drink enough water

101

so it helps to just kind of have a cup by your desk as a reminder to drink sometimes

102

or you could make it more fun by trying to flavor your water with a little bit of fruit

103

or cucumber or mint for example.

104

But overall what we saw in

105

so many different studies was this kind of recurring message on the importance of eating whole plant-based foods

106

and a variety of them as often as possible not only to support overall health

107

but also to help us feel more energized throughout the day and to help better support our sleep.

108

But there are also some other nutrition topics we didn't get

109

a chance to explore in today's video like how does fat

110

or salt or alcohol affect sleep or other dietary and lifestyle choices

111

so if you are interested in geeking out

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and learning more I'm going to leave that article

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that we've written in the description box below that's also where

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you're going to find links to the different research papers

115

that we were kind of referring to in today's video

116

and I hope you have an awesome night's sleep

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and an awesome energized day tomorrow that you learned something new in today's video

118

so if you enjoyed feel free to give it a thumbs up means a lot

119

and Pickle Plimes signing off we'll see you in the next video Thank you.

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このレッスンについて

このレッスンでは、「なぜいつも疲れているのか？+食べ物で解決！」というYouTube動画を使って、英語のリスニングとスピーキングを練習します。疲労と栄養の関係についての科学的な説明を通じて、日常的なトピックでの英語表現を身につけるとともに、シャドーイングや発音の練習も行います。IELTS スピーキング対策にも役立つ実用的な表現がたくさんありますよ。

重要な語彙とフレーズ

circadian rhythm：概日リズム（体内時計）
chrononutrition：クロノニュートリション（食事と体内時計の関係を研究する分野）
tryptophan：トリプトファン（アミノ酸の一種）
melatonin：メラトニン（睡眠を促すホルモン）
slow digesting carbs：消化の遅い炭水化物（高繊維のもの）

練習のコツ

この動画のスピードは中程度で、話し手の口調が親しみやすいので、シャドーイングに最適です。YouTubeで英語学習をする際のコツとして、まずは動画を1回聴いて全体の内容を理解し、2回目からシャドーイングを試してみてください。「circadian rhythm」や「tryptophan」などの専門用語は、発音を正確に覚えるために、繰り返し聞き返して口に出して練習しましょう。英語の発音を良くするコツは、唇や舌の動きを意識することです。例えば「melatonin」の「me」の部分は口を大きく開けて発音します。

英語スピーキング練習の際は、動画の中で使われている「It's a very defeating feeling...」のような表現を自分の言葉に変えて話してみるのも効果的です。また、「breakfast」の語源が「fastをbreakする」ことから来ているという説明は、IELTS スピーキングでも話題になるかもしれないので、覚えておくと良いでしょう。シャドーイングを続けることで、自然なリズムとイントネーションを身につけることができます。

この動画の文法

話し手がよく使っている文型を、動画の実際の表現とともに紹介します。

文型	動画での表現
現在完了進行形 have/has been + -ing — 以前に始まり今も続いている動作	we've been fasting · you've been drinking
関係詞節 who / which + 節 — 人や物について情報を加える	sync, which can · somebody who kind · those who eat
受動態 be + 過去分詞 — 誰がするかより、何が起きるかに焦点を当てる	can be brought · is known · is called
現在完了形 have/has + 過去分詞 — 過去の出来事が今も関係している	we've simplified · have shown · we've been

シャドーイングとは？英語上達に効果的な理由

シャドーイング（Shadowing）は、もともとプロの通訳者養成プログラムで開発された言語学習法で、多言語習得者として知られるDr. Alexander Arguelles によって広く普及されました。方法はシンプルですが非常に効果的：ネイティブスピーカーの英語を聞きながら、1〜2秒の遅延で声に出してすぐに繰り返す——まるで「影（shadow）」のように話者を追いかけます。文法ドリルや受動的なリスニングと異なり、シャドーイングは脳と口の筋肉が同時にリアルタイムで英語を処理・再現することを強制します。研究により、発音精度、抑揚、リズム、連音、リスニング力、そして会話の流暢さが大幅に向上することが確認されています。IELTSスピーキング対策や自然な英語コミュニケーションを目指す方に特におすすめです。

シャドーイングのやり方: ステップ別の完全ガイドを読む →

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このレッスンについて

重要な語彙とフレーズ

練習のコツ

この動画の文法

シャドーイングとは？英語上達に効果的な理由