☆☆ Lesson·1 How does food affect your brain丨食物如何影響你的大腦的

☆ The foods you eat supply your body with energy.

?你吃的食物為你的身體提供能量.

☆ Your body needs energy to move, breathe, and even to sleep.

?你身體需要能量來移動、呼吸，甚至睡覺.

☆ One part of your body uses a surprising amount of energy.

?你身體的某一部分會消耗驚人的能量.

☆ It's surprising because this part of your body is small only 2 to 3 percent of your total weight, but it uses 20 to 30 percent of the energy from your food.

?令人驚訝是因?yàn)槟闵眢w的這一部分很小，僅占總重量的2%到3%，但消耗了食物中20%到30%的能量.

☆ Can you guess what it is?

?你能猜出這是什么？

☆ It's your brain.

?這是你的大腦.

☆ No doubt you know that drugs affect the brain, but did you know that food affects it, too?

?毫無疑問你知道藥物會影響大腦，但是你知道食物也會影響大腦嗎？

☆ Different types of food affect the brain in different ways.

?不同類型的食物以不同的方式影響大腦.

☆ Sometimes we can feel the changes that food makes in our brains.

?有時我們可以感受到食物對我們大腦的影響.

☆ For example, most people can feel a change almost immediately after drinking coffee.

?例如，大多數(shù)人在喝咖啡后幾乎可以立即感受到變化.

☆ The caffeine in coffee makes people feel mentally sharper and more awake.

?咖啡中的咖啡因讓人感覺精神更敏銳、更清醒.

☆ After a cup of coffee, a person can think and make decisions more quickly.

?一杯咖啡后，一個人可以更快地思考和做出決定.

☆ Other foods affect the brain in ways that we cannot feel, so we aren't aware of the effects.

?其他食物以我們感覺不到的方式影響大腦，所以我們不感受到影響.

☆ We do not realize how these foods influence us.

?我們沒有意識到這些食物如何影響我們的.

☆ However, everything we eat matters.

?然而，我們吃的每樣?xùn)|西都很重要.

☆ Our food affects how smart we are, how well we remember things, and how long we can concentrate.

?我們的食物會影響我們的聰明程度，影響我們的記憶力，以及注意力的時長.

☆ For example, researchers have found that:

?例如，研究人員發(fā)現(xiàn)：

☆ · Eating breakfast makes students do better on tests.

?· 吃早餐使學(xué)生在考試中表現(xiàn)更好.

☆ · Spinach， berries, and other colorful fruits and vegetables help keep older brains from slowing down.

?· 菠菜、漿果和其他五顏六色的水果和蔬菜有助于減緩大腦衰老.

☆ · Eating large amounts of animal fat(in meat and cheese, for example) makes learning more difficult.

?· 吃大量動物脂肪（例如肉類和奶酪）會使學(xué)習(xí)更加困難.

☆ · Fish really is "brain food".

?· 魚真是“健腦食品”

☆ Many people have long believed that eating fish was good for the brain, and now scientists are finding that this is true.

?許多人一直認(rèn)為吃魚對大腦有好處，現(xiàn)在科學(xué)家們發(fā)現(xiàn)這是真的.

☆ For millions of years, the brains of early human beings stayed the same size.

?數(shù)百萬年來，早期人類的大腦保持不變.

??

☆ They weighed only about one pound(400 to 500 grams).

?它們僅重約一磅(400至 500克).

☆ Then, during the last million years or so, there was a big increase in brain size, with the human brain growing to about three pounds on average.

?然后，在過去一百萬年左右的時間里，腦容量大大增加，人類的大腦平均增長到了三磅.

☆ This increase in brain size meant an increase in brainpower.

?大腦大小的增加意味著腦力的增加.

☆ With bigger, more powerful, more advanced brains,

?擁有更大、更強(qiáng)、更先進(jìn)的大腦，

☆ human beings became smart enough to build boats and invent written languages.

?人類變得足夠聰明，可以造船和發(fā)明書面語言.

☆ They developed forms of music and began to create works of art.

?他們開發(fā)了音樂形式并開始創(chuàng)作藝術(shù)作品.

☆ Some scientists say that the big change in the size of the human brain happened after people started to eat fish and other kinds of seafood.

?一些科學(xué)家說，人類大腦大小的巨大變化發(fā)生在人們開始吃魚和其他種類的海鮮之后.

☆ Seafood contains a certain kind of fat, known as omega-3 fat.

?海鮮含有某種脂肪，稱為omega-3脂肪.

☆ According to these scientists, omega-3 fat caused the increase in brain size.

?根據(jù)這些科學(xué)家的說法，omega-3脂肪會讓腦容量增加.

☆ Today, brain scientists in general agree:

?今天，腦科學(xué)家普遍認(rèn)同：

☆ This fat is still important for healthy brains, and most of us are not getting enough of it.

?這種脂肪對健康的大腦仍然很重要，而我們大多數(shù)人都沒有得到足夠的omega-3.

☆ Did you realize that your brain is always changing, no matter how old you are?

?你是否意識到，無論多大年紀(jì)，你的大腦都在不斷變化？

☆ The foods you eat affect how your brain grows, how well you learn, and how well you remember things.

?你吃的食物會影響你大腦的發(fā)育，影響到你的學(xué)習(xí)，以及你的記憶力.

☆ Maybe you have never thought about how you feed your brain.

?也許你從來沒想過你是如何喂養(yǎng)你的大腦的.

☆ Luckily, it's never too late to start feeding it well.

?幸運(yùn)的是，喂養(yǎng)大腦永遠(yuǎn)不會太晚.