TED

2カ月で脳環境は改善できる!―脳の健康は人生を変える(TED)

健康

ライフハックとしてではなく、英語学習にも極めて有用なのが、著名人が10分程度のプレゼンを行うTEDです。

TED Talksとは、あらゆる分野のエキスパートたちによるプレゼンテーションを無料で視聴できる動画配信サービスのことです。10年ほど前にサービスが開始されてから、政治、心理学、経済、日常生活などの幅広いコンテンツが視聴できることから人気を集めています。

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TEDは4000を超える膨大な数の動画があります。しかし慣れないうちは、動画の探し方や視聴のコツが分かりませんよね。この記事では、数多くのTEDを見てきた管理人(塩@saltandshio)が、心を揺さぶられたトークをあらすじと一緒にご紹介します。

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脳の健康は 人生を変える―脳画像が教えてくれること:ダニエル・エイメン

脳の健康は 人生を変える―脳画像が教えてくれること:ダニエル・エイメン

内科医、精神科医、そして教師でもあるダニエル・エイメン医師は、脳画像科学を精神科臨床に適用している世界の先進的な専門家の一人です。20年間に90カ国からの6万3千もの脳のSPECT画像の研究から、我々の健康な生活について理解を深めて悪しき習慣を変えうるかを話します(約19分)。

[PR]無料体験レッスン実施中!全国208校、創業40年の老舗英会話スクール【シェーン英会話】

心身の健康は脳が適切に機能してこそ

ダニエル・エイメンが過去20年間、6万3千以上の脳スキャンを見てきた結果わかったことは、脳という臓器は判断を行い、パーソナリティや性格を規定しているということです。脳が適切に機能していれば、人は適切に働くことができます。しかし、脳に異常がある場合は生活にかなりの支障が出ます。

脳スキャンを通してわかる健康的な脳とは、均等で、左右対称的であり、さらに良好な活動性を示しています。よく、毎日2杯の赤ワインは心臓にいいと言われていますが、じつは脳的にはかなり悪影響を及ぼしています。それは、アルコールが肝機能に直接の害をもたらしているからです。

脳が健康であれば、当然のことながらより幸福で、健康で、裕福で、賢く、創造的、イノベーティブであるでしょう。

With a healthy brain, it’s very clear to me you’re happier, healthier, wealthier, you’re wiser, you’re more creative, more innovative.

みなさんは、脳のことをどれほどご存知でしょうか。

  • 1千億個の神経細胞がある
  • 各神経細胞は多い時で一万ちかくの神経細胞に接続している
  • 情報伝達スピードは時速430km
  • 脳の重量は体重の2%
  • 脳のカロリー消費量は一日摂取カロリーの20~30%
  • 失われる神経細胞は毎日平均8万5千個

そんな脳ですが、私たちは知らず知らずのうちに脳を痛める生活を送っていることにお気づきでしょうか。

[PR]まずは無料カウンセリング”続けるため”の オンライン英語コーチ「スピークバディ パーソナルコーチング」

現代社会は脳を痛める生活習慣ばかり

いまの生活は、脳に悪影響を及ぼすことばかりしているといっても過言ではありません。具体的に、どんなことが脳に悪影響を及ぼしているか見ていきましょう。

  1. 肥満
  2. 喫煙
  3. 運動不足
  4. ANTs(ネガティブな自動思考)
  5. 偏った食生活
  6. 睡眠不足

①の肥満ですが、体重の増加に伴い脳のサイズと機能が低下することがわかっています。喫煙も、脳血流を締め付けてしまい、皮膚同様に脳の老化を早めます。さらに高血圧の場合も気を付けなければいけません。なぜなら、血圧が上がるほど脳血流が低下するためです。運動不足と、ネガティブな自動思考も脳に悪影響があるのも、あえて説明しなくてもおわかりいただけると思います。

脳に送られるエネルギーは、一日摂取した総カロリーの20~30%というのは先程お伝えしました。そして、そのエネルギーは口から取り込んだ栄養素によって構成されています。つまり、良い食材はあなたの脳と健康を助けますが、悪い食材は逆に傷付けてしまうのです。

さらに、技術の進化により私たちの睡眠時間は随分と短くなってしまいました。1900年には平均9時間あった睡眠時間も、いまは約6時間にまで短くなっています。

7時間未満の睡眠は脳の全般的な血流低下を招きます。人類史において、こうした変化があまりに短期間で起こることは、脳に深刻な結果をもたらすでしょう。

Less than seven hours of sleep, you get lower overall blood flow to the brain. Your brain cannot go through that kind of transition in such a short period of human history, without there being very serious consequences.

睡眠時間の大切さは、アリアナ・ハフィントンもTED Talksで話していましたね。

睡眠
多忙は怠惰の隠れ蓑―成功の鍵とは? もっと睡眠をとりましょう(TED)【TED 紹介・解説】アリアナ・ハフィントン: 成功の鍵とは? もっと睡眠をとりましょう/睡眠不足を自慢げに話すのはやめましょう。睡眠で生産性や幸福を増加させ、我々を優れた意思決定者にしましょう(約4分半)。そんなトークの詳細を紹介します。...
[PR]赤ちゃんの寝かしつけから大人まで、睡眠環境を整えるトトノエライト。

脳を守るために私たちが出来ること

現代の生活環境は脳に悪影響を与えるものばかりです。では、私たちはどうやって脳の健康を守ればいいのでしょうか。こたえは簡単です。悪影響を与えることから逆のことをすれば、弱った脳を元気にすることが出来ます。具体的には以下の4点です。

  1. 健康的なライフスタイルを心掛け、健康的に過ごしている人たちと過ごす
  2. 睡眠時間は7時間をとるように心掛ける
  3. 幸福のレベルを上げるために感謝の心を持つ
  4. 新しいことに挑戦する

さらに、誰と一緒に過ごすかで自分の寿命が大きく左右されると知ったら、あなたはどう思いますか?

もし、あなたと共に過ごす人々が健康なライフスタイルを送っていれば、あなたに好影響を与えます。「伝染」するのです。

もし、周囲の人々のライフスタイルが不健康であれば、あなたの寿命は短くなります。誰と時間を過ごすかについて真剣に考えてください。

If you spend time with people who have healthy health habits, you pick those up, because people are contagious.

If you spend time with people who do not have healthy habits, you die early. Become very serious about who you spend your time with.

周囲の環境と同様に大切なのが、どうやって幸福感を持ち続けるかということも大事です。ポジティブ心理学については、ショーン・エイカーのTED Talksがとても参考になります。

青い鳥
逆転の発想が幸福をもたらす―幸福と成功の意外な関係(TED)【TED 紹介・解説】ショーン・エイカー: 幸福と成功の意外な関係/私たちは幸福になるために努力し成功しなければならないと思っていますが、逆だとしたらどうでしょう?(約12分半)。そんなトークの詳細を紹介します。...
[PR]睡眠の質を改善! 初回特別価格【送料無料】機能性表示食品【ぐっすりサフラン】

30年のベテラン精神科医が考える脳に最重要なこと

睡眠不足の状態では、食べ物への衝動を制御しづらくなります。お酒やタバコの影響は前述したとおりです。

脳に悪影響を与える習慣をやめて、良い習慣を取り入れていったら一体どうなるでしょうか。言うまでもありませんが、脳が健康になると生活すべてが改善します。身体状態から経済状態、対人関係やイノベーションに至るまでです。

脳の健康を保つために、瞑想も効果があると考えられます。瞑想やぼんやり過ごすことは脳が鎮まると考えがちですが、しかし実際は逆で、瞑想すると最も人間らしく思慮深い部位といわれる前頭葉が活性化するといわれています。

トークの中で、ダニエル・エイメンは『脳に最重要なこと』を紹介しています。それは、『心に浮かぶ、ネガティブな考えに巻き込まれないこと』です。

こう自問してみるのです。「それは本当だろうか?」夫から愛されていないように感じる―「それは 本当だろうか?」

自分の考えを問い直すことは、より合理的な世界に生きることです。

Have this little question, in your head, “Is it true?” So when you feel like your husband doesn’t love you, is it true?

Because when you question your thoughts, you live in a more rational world.

働き盛りの人ほど、脳をひどく傷付けているかもかもしれません。いちど立ち止まって『いつも』の生活を見直してみませんか?もしこのまま歩き続けたら、将来様々な病気によって、あなたの心身の健康が害されてしまうかもしれません。

[PR]「頭スッキリ」、今注目の加睡眠アミノ酸<スヤナイトα>

まとめ:今からでも脳を健康にできる

もし、あなたが今日から自分の生活習慣の改善を試みて、生活を改めたら2カ月以内に脳は改善するとダニエル・エイメンは言います。一度に全部改善するのは難しいかもしれませんが、まずは睡眠時間を確保するためになんとなくスマートフォンを見るのをやめてみませんか?

禁煙も、食生活も、ひとつひとつは地道な積み重ねでささやかなことです。しかし、どれもすぐに出来る事です。脳が健康になる生活を今日から始めてみませんか?

英語全文

Good afternoon.

I am so excited to be here. I actually film all my shows here at the Orange County Performing Arts Center.

<全文を読む>▼クリック▼

So, innovation is a brain function. It is dependent on the physical health of your brain. So, did you know obviously, your brain is involved in everything you do: how you think, how you feel, how you act, how you get along with other people.

At the Amen Clinics, we have looked at over 63,000 brain scans over the last 20 years, and it is very clear to me that your brain is the organ of judgment, personality, character, and innovation. And when you brain works right, you work right. And when your brain is troubled, you are much more likely to have trouble in your life.

So what you see on the screen are two brain SPECT scans. SPECT is the study that we do in our clinic. It is a very sophisticated brain imaging study that looks at blood flow and activity patterns. It looks at how your brain works.

And it basically shows us three things: areas of the brain that work well, areas of the brain that are low in activity, and areas of the brain that are high in activity. So good activity, too little, or too much. And then our job becomes balancing it.

The image on your left is a healthy scan. It shows full, even, symmetrical activity. The color doesn’t mean anything, it’s the shape. The image on the right is an alcoholic scan. Alcohol is directly toxic to brain function. I know many of you believe you have to have your two glasses of red wine a day because it’s good for your heart. It is not good for your brain. With a healthy brain, it’s very clear to me you’re happier, healthier, wealthier, you’re wiser, you’re more creative, more innovative.

When your brain is not healthy, for whatever reason: you had a brain injury, you have a terrible diet, you live in a toxic environment, you’re sadder, sicker, poorer, not as smart. You’re more rigid, and you’re inflexible, which is the opposite of innovation. I’ve said this tens of thousands of times, and it always blows me away.

Your brain is the most complicated organ in the universe. There is nothing as complex as the human brain, nothing.

It is estimated we have 100 billion nerve cells. And each nerve cell is connected to other nerve cells, not in a one-to-one connection, but up to 10,000 individual connections between cells. Which means you have more connection in your skull than there are stars in the Universe.

Information in your brain travels at about 268 miles an hour. Unless, of course, you’re drunk. And even though your brain is only 2% of your body’s weight, it uses 20 to 30% of the calories that you consume. So, of the breakfast you had this morning, or the lunch you had this afternoon, almost a third of it goes to feed 2% of your body’s weight.

Your brain is the most expensive real estate in your body. On average, you lose 85,000 brain cells a day. And what we’ve discovered at the Amen Clinics is you can accelerate the aging process with your behavior, or you can decelerate it. How exciting is that? The health of your brain also decelerates innovation, or it accelerates it.

So what are the things that hurt your brain? Brain injury should be obvious. I just finished the largest NFL study, brain imaging study on retired NFL players. The NFL is no longer lying about brain injuries. They’re taking it much more seriously.

Do not let your kids play tackle football, or hit soccer balls with their head. Come on, the brain is very soft, about the consistency of soft butter. And your skull is really hard, and it has many sharp, bony ridges. You have to protect it.

Drugs and alcohol should be obvious, but what our country has no clue yet, but is learning, is that obesity damages brain function. There are now ten studies. We just published a study in the Nature journal, “Obesity”, that says as your weight goes up, the actual physical size and function of your brain goes down.

Whoa. That should scare the fat off anyone. I read that study, the first one that came out about three years ago, I dropped 25 pounds. I was serious, when it comes to the brain, size matters. You do not want a smaller brain. Smoking constricts blood flow to the brain. Like it prematurely ages your skin, it prematurely ages the brain. High blood pressure, as your blood pressure goes up, the blood flow to your brain goes down. So you need to know your blood pressure on a regular basis, and if it’s high, take it seriously.

Diabetes, standard American diet, environmental toxins, lack of exercise, and something I call ANTs – Automatic Negative Thoughts, the thoughts that come into your mind automatically and ruin your day. They are the seeds of anxiety disorders and depression.

So if this is true, it is, what are the things you can do to help your brain?

Positive social connections. Unbelievable, the people you spend time with determine your longevity. Isn’t that interesting? If you spend time with people who have healthy health habits, you pick those up, because people are contagious. If you spend time with people who do not have healthy habits, you die early. Become very serious about who you spend your time with.

New learning, so TED is perfect for this. Whenever you learn something new, your brain makes a new connection. When you stop learning, your brain actually starts to disconnect itself.

Diet is absolutely essential.

You are consuming the nutrients that are helping you, or the toxins that hurt you. The SAD diet, the Standard American Diet, is not only associated with heart disease, cancer, and diabetes. It’s associated with depression, attentional problems, and Alzheimer’s disease. Food is medicine, or it is poison.

Sleep, again it’s absolutely essential. Because you know, in 1900, we got, on average, nine hours of sleep at night. In 2011, we get six hours of sleep at night. Less than seven hours of sleep, you get lower overall blood flow to the brain. Your brain cannot go through that kind of transition in such a short period of human history, without there being very serious consequences. And as sleep goes down, weight goes up, because your cravings get out of control. So, being physically healthy is important.

But having anxiety is important. Did you know there are great studies with longevity, and the children who were the “Don’t worry, be happy” children die early, because they didn’t take their health seriously enough. I hope I give you a little anxiety.

You know, I’m a psychiatrist by training. I was teaching people to chill out, and what I came to realize, is I need to motivate them a little bit and just increase their fear, so that the double cheeseburgers are not calling their name.

Meditation fooled us. What we thought, you know, meditate, zone out, brain calms down. Absolutely not like that at all. When people meditate, it activates the front part of their brain which is the most human, thoughtful part of their brain.

You want the best antidepressant? It’s not Prozac, it’s gratitude. You write down three things you’re grateful for every day. Within three weeks you’ll notice a significant difference in your level of happiness. ANT-killing means don’t believe every stupid thought you have.

You go, “OK, Dr. Amen, you’ve been a psychiatrist for 30 years. Single most important thing people can do?” Don’t believe every stupid thought you have. Have this little question, in your head, “Is it true?” So when you feel like your husband doesn’t love you, is it true? Because when you question your thoughts, you live in a more rational world.

Here are examples of three 60-year-old brains. One with Alzheimer’s disease. One that is overweight, that has sleep apnea, which is a disaster for brain function. And a healthy scan. Which brain do you want? I know which brain I want.

Here are five ways brain imaging will change everything you do. The first thing, it will give you brain envy. So, I started doing scans in 1991. I was 37 years old, and I scanned my own brain. And I looked at it, compared to a lot of other scans, and I went, “Yuck, too many bumps, bumpy places.”

And I’ve actually never drank. I got drunk when I was 16, I had a hangover for five days. I went, “This is not for me.” Never smoked, never did drugs. I’m like, “Why does my brain look so bad?” But at the time, I had a lot of bad brain habits. I only slept four or five hours a night because I was driven. I was drinking diet soda like she was my best friend. And I carried more weight, was under chronic stress, and it showed. And so, since I saw my scan, and developed brain envy, at 52, I scanned myself again, and it’s much younger. My brain looks better. And you know, you can do that. That’s the cool thing about the brain.

You’ve probably heard about brain plasticity. But if you make good decisions today, we found this out with our NFL study, that you can start to improve your brain within two months. It’s like, how exciting is that? And, with a better brain, everything in your life is better; from your body to your money, to your relationships, to the level of innovation.

The second thing is, since brain imaging, I would never let my kids play tackle football. When does the brain finish developing? Twenty-five. Your brain, and in males, some people think it’s more like 28. So the idea that you are an adult at 18, from the neuroscience perspective, is just flat-out stupid.

And the insurance companies know that. When do your insurance rates change and stabilize? Twenty-five. Why? Because you’re making better decisions. And the decisions you make are a brain function. So do not let your kids put their brains at risk. You’ll take environmental toxins so much more seriously.

This is one of the firefighters that we scanned recently. And you see this overall low activity. Those holes? He doesn’t have physical holes in his brain. What he has is serious overall low activity.

You’ll take your weight a whole bunch more seriously. And you’ll think about the early detection and prevention of Alzheimer’s disease. Alzheimer’s disease is expected to triple in the next 25 years We cannot afford this. And how you prevent Alzheimer’s disease? Is you prevent all the illnesses that are associated with it, like heart disease, cancer, diabetes, depression, and high blood pressure. So, how to create a brain-smart world to accelerate individuals? This is my goal.

And we see individuals and families at the Amen Clinics, but we’re very interested in schools, in churches, businesses, and communities. And, I love this.

Andy came to see me about four months ago. First time, about ten years ago, when he was 53, and his brain just looked awful. And I got him to buy into the program of brain health. And, this is what his brain looked like ten years later. Isn’t that cool?

And I want to talk about getting systems involved. So, I was working on my new show. And while I was working on my show, I went to church. And my wife said she’d drop Chloe off, our seven-year-old, at children’s church, and I would go save us seats. And, it’s at a very large church nearby, and it’s not Saddleback. And as I walked into church, I passed 500 donuts for sale. And I was just irritated. And then I walked by bacon and sausage cooking on the grill. And I’m furious. And right before I go into the sanctuary, they’re cooking hundreds of hot dogs for something after church. And as I sat down in the sanctuary, the minister started talking about the ice cream festival they had the night before. And, I’m nearly psychotic at this point.

And when my wife found me, I was typing on my phone, which she hates. And she gave me that look that only your wife can give you, that said, “Why the hell are you on this thing in church?” And I showed her what I was writing: “Go to church, get donuts, sausage, bacon, hot dogs, ice cream. They have no idea. They’re sending people to heaven early!” It’s like, not the plan. And I have no idea what the minister said the rest of that service. I just sat there, praying that God would use me to change churches. Because this isn’t the plan.

No lie, two weeks later, Rick Warren calls me. He said, “Dr. Amen, we’re doing this program called Decade of Destiny in the next ten years at Saddleback. I want to get the congregation and myself healthy. Will you help me?” I’m like, “Oh my God, God was paying attention.” Often in my life I don’t feel like that, but I’m so excited.

And so we have put together a program called The Daniel Plan: God’s Prescription for your Health, for the 30,000 members at Saddleback. And we give them the opportunity to sign up for the research part of the program. We now have nearly 15,000 people in our research study. Saddleback, as we developed the Daniel Plan, is connected to 400,000 churches around the world.

Next year, after we’ve beta tested this year, we’re going to export it. I couldn’t be more excited about this. And we deliver the content through small groups. Why? Because people get well in groups. They get well as families, they get well in support groups. And after three months, the church has already lost 160,000 pounds. People report improved energy, focus, creativity, sleep, mood, reductions in asthma, stress, blood pressure, blood sugars, and many medications.

We have our own Daniel Plan menu, and I have my challenges. I am still trying to get them to kill the donuts at church. You might pray for me. I couldn’t be more excited to be part of what has the potential to change the world from the church up.

But you know, it also needs to happen from the school up. The food they serve your children is a scandal, and research suggests that it actually increases attentional and behavior problems. There’s three studies now in the journal The Lancet that said, “put kids on elimination diet,” which basically means eliminate all the crap in their diet. And within three months, 73% of them show greater than a 50% reduction in their symptoms.

This isn’t hard. We need to change our society, though. From businesses up, from hospitals up. I went and visited my aunt in the hospital, I said, “I have to get you out of here, the food is going to kill you.” Brain health and innovation are intimately connected. Please help me create a brain healthy world.

Thank you.

<閉じる>

科学
10分で意識改革!TEDのおすすめ動画10選【脳科学編】【TED 紹介・解説】TEDは4000を超える膨大な数の動画があります。しかし慣れないうちは、動画の探し方や視聴のコツが分かりませんよね。この記事では、見ると誰かに言いたくなるTEDのおすすめ動画10選【脳科学編】を、あらすじと一緒に紹介します。...

\ ほかにも気になるトークが満載! /

マイク
TEDまとめ(1):エキスパートたちが贈る極上のメッセージ ライフハックとしてではなく、英語学習にも極めて有用なのが、著名人が10分程度のプレゼンを行うTEDです。 TED Talksと...