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动动脑子!

Use Your Brain!

大家好
Hey there everyone!
还记得我吗?
Remember me?
如果你还记得我 那是因为你运用了你身体中最棒最重要的
If you do remember me, that’s because you’re using one of the most awesome and powerful
部分
parts of your body.
那就是你的大脑
Your brain.
正是因为有大脑 你才能看到我 听到我说的话
Your brain is also the reason that you can can see me —and hear me — and understand
并且理解我说了什么!
what I’m saying!
很明显 大脑不仅很强大 它还非常重要!
Clearly, the brain isn’t just powerful…it’s powerfully important!
所以 让我们了解更多关于大脑的知识吧!
So let’s learn some more about it!
一个成年人的大脑大约有16厘米长 像美钞一样长
A grown-up’s brain is about 16 centimeters long — as long as a dollar bill — and it
它的重量不到一点五千克 大概像一袋苹果那么重
weighs a little under one and a half kilograms, about as much as a bag of apples.
如果你是个儿童 那么你的大脑还在生长 所以它会小一点儿
Now, if you’re a kid, your brain is still growing—so it’s a little smaller.
儿童的大脑大小像葡萄柚 重量不足一千克
Kids’ brains are about the size of a grapefruit, and weigh a little less than a kilogram.
大概像一公升水那么重
That’s about as heavy as a liter of water.
但是你的大脑看起来什么样呢?
But what does your brain look like?
嗯 你有没有因为待在浴盆或者游泳池里太久
Well, have you ever stayed in the tub or pool too long, and your toes and fingers got all
导致你的脚趾和手指都皱巴巴的经历?
wrinkly?
大脑看起来也是皱巴巴的
Well, the brain looks wrinkly, too.
科学家们认为这些褶皱使大脑更好地工作
Scientists think that these wrinkles help the brain work properly.
大脑是灰白色的 它又软又黏 有点像果冻
The brain is also grayish-white in color…and is pretty soft and squishy, kind of like gelatin.
因为大脑十分柔软 所以必须要保证它的安全
And because the brain is so soft, it has to be kept safe.
所以 它 在你的头骨里!
And it is … inside your skull!
毕竟 你的脑袋也有骨头嘛
Your head has bones, too, after all.
这些骨头非常厚而且非常坚硬 它们组合在一起成为你的头骨
They’re pretty thick and very hard, and together, these bones make your skull.
你的大脑是你身体的神经系统中的主要部分
Now, your brain is the main part of your body’s nervous system.
神经系统最主要的任务是帮助你身体的不同部分协调工作
The biggest job of your nervous system is to help all of the different parts of your
通过反反复复地传达信息
body work together by carrying messages back and forth.
而且大脑就像神经系统的指挥中心
And the brain is like the command center of your nervous system.
它们负责从你身体其他部分获得信息 并决定如何处理这些信息
It’s in charge of getting messages from the rest of your body…deciding what to do
然后告诉你的身体采取行动
with those messages … and then telling your body to take action!
比如 如果你的鼻子痒痒的 它就给大脑传递信息 说
For example, if your nose starts to feel itchy, it sends a message to the brain that says,
嘿 你的鼻子痒了!
“Hey, your nose is itchy!”
然后你的大脑传递信息给你胳膊和手上的肌肉说
And your brain sends a message to the muscles in your arm and hand saying, “scratch your
挠挠你的鼻子!
nose!”
这些信息在大脑和身体间传递地非常非常快
These messages that move between the brain and the body move very, very quickly…faster
比我们能制造的最快的电脑还快
than the fastest computer we can make.
事实上 大多数信息传递地太快以至于我们甚至都没有意识到它们的发生
In fact, most of the messages move so fast that we don’t even realize they’re happening.
最棒的是 你的大脑从不休息
And the best part is, your brain never takes a break.
即使你在睡觉 它都从不睡觉!
It never sleeps…even when you do!
当你睡着的时候 你的大脑确保你的心脏一直跳动
While you’re asleep, your brain makes sure that your heart keeps beating and your lungs
你的肺一直呼吸
keep breathing.
它让你眨眼睛 让你在突然听到巨大噪音时
It tells your eyes to blink and it makes you jump when you hear a loud noise that you weren’t
跳起来
expecting.
你甚至都不需要考虑这些!
You don’t even have to think about any of this!
所有重要事情都由你大脑处理 不管你知不知道
Your brain takes care of all of that important stuff without you even knowing about it!
你的大脑在感官方面同样扮演着非常重要的角色 包括视觉 听觉 嗅觉 味觉和触觉
Your brain plays also a big role in your senses…seeing, hearing, smelling, tasting, and touching.
比如说 当你听到些什么 你的耳朵就给你的大脑传递信息
For example, when you hear something, your ears send a message to your brain…which
它分辨出这是吱吱声 由一个机器鼠发出的吱吱声
recognizes the sound as a squeak…a squeak made by a certain robot rat!
还记得我说过大脑帮助你记忆吗?
And remember when I said the brain helps you remember?
它的确会帮助你记忆!
It does!
就像我的大脑帮我辨认出吱吱发出的声音 你的大脑
Just like my brain helped me recognize the sound that Squeaks makes, your brain helps
让你记住各种各样的东西
you remember all kinds of things!
例如 迅速的 闭上你的眼睛一秒钟 想想你最喜欢的食物
For example, real quick…Close your eyes for a second and think of your favorite food.
好了 现在打开你的眼睛
Okay, now open your eyes.
你想起来了吗?
Did you remember it?
你现在能想起来你最喜欢的食物 是因为
You were able to think of your favorite food just now, because your brain is the part of
你的大脑是你身体中负责记忆的部分
your body that remembers.
当我让你想你最喜欢的食物时 你的大脑能想出
When I asked you to think of what food you liked best, your brain was able to come up
它的名字 可能还有它看起来怎样 闻起来怎样
with the name of it, and also probably what it looks like, and even how it smells and
还有尝起来怎样
tastes.
你记得所有这些东西 多亏有你的大脑!
You remembered all of those things, thanks to your brain!
大脑最重要的工作是学习 就像我希望
And one of the brain’s most important jobs is to learn…like I hope you’re
你们正在做的
doing right now.
从你出生以来 你已经学了很多 像是如何说话
You’ve already learned a lot of things since you were born, like how to talk, and how to
如何分辨形状和颜色
recognize shapes and colors.
但是随着年龄增长 你有更多的东西要学 你的大脑会一直
But you have a lot more to learn as you get older…and your brain will be there every
帮助你学习成长
step of the way!
因为它有很多工作 所以照顾好你的大脑非常重要
With all of the jobs it has, it’s important to take good care of your brain.
当你骑车或者做其他运动时 你可以戴上头盔来保护你的大脑
You can help to protect your brain by wearing a helmet when you ride a bike or do other sports.
你也可以这样照顾你的大脑 比如吃健康的食物 睡眠充足
You can also take good care of your brain by eating healthy foods…getting enough sleep…and
或是进行大量的体育锻炼
getting lots of exercise.
哦 用脑思考学习是保持大脑健康
Oh, and using your brains to think and to learn is one of the best things you can do
最好的方式
to keep your brain healthy!
所以很快我们会再次见面 学习一些新知识 并且锻炼我们的大脑
So I’ll see you again soon to learn something new…and to use your brain!
感谢观看本期科学秀儿童节目
Thanks for joining us on SciShow Kids.
很高兴你们能观看我们的节目 期待下次再见
We’re so happy that you dropped by, and we’re very excited to see you next time
吱吱和我会对节目做些改变
because Squeaks and I are making some changes around the fort.
所以保持关注吧!
So keep watching to see what’s new on SciShow Kids!
你对你的身体如何工作或者别的方面有什么问题吗?
Do you have a question about the way your body works…or anything else?
如果有的话 让父母帮你在下面留下评论 或者发送电子邮件到
If you do, ask a grownup to help you leave a comment bellow, or send an email to
Kids@scishow.com
Kids@thescishow.com
下次再见!
See you next time!

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视频概述

好奇大脑的模样?大脑是如何工作的?快来了解一下吧!

听录译者

收集自网络

翻译译者

HJF再来三碗饭

审核员

【MO】哒

视频来源

https://www.youtube.com/watch?v=b79xio8qgiY

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