قبل از گوش کردن، لغات را خوب بررسی کنید، متن را چندین بار گوش کرده و بعد از روی اسکریپت آن، بخشهایی را که متوجه نشدید بررسی کنید
Proved: اثبات شده
Perform: اجرا کردن
Oversimplify: سهل انگاری
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این پادکست برای سطح B2 (آیلتس 5 - 6.5) طراحی شده است
The old grey matter
Richard: were talking about the brain.
Jackie: Now, Richard, I'm not very brainy [both laugh] so I don't know too much about the brain but it's often referred to as a kind of a muscle and that, you know, by using your brain by exercising it, it’s good for you or its good for the brain. Is that true?
Richard: Yes and no. Interesting fact number one is actually the brain is 60% fat.
Jackie: Oh no?
Richard: [laughs] The reason they say it’s like a muscle though, is because you need to exercise it and the more you exercise it the better it becomes.
Jackie: So can you actually become more intelligent then?
Richard: I'm not sure about more intelligent but in studies it’s been proved that er... if you learn something new your brain actually develops and it becomes stronger.
Jackie: Is it possible then to delay dementia and things like that?
Richard: Yes, definitely. There's the phrase "use it or lose it".
Richard: So if you use your brain a lot more for instance doing um... having interesting conversations...
Jackie: Learning a language.
Richard: Learning a language, definitely, doing crosswords um... if you keep your brain active, then you...
Jackie: You're going to keep your marbles.
Richard: You're going to keep your marbles and stop dementia, it's very, very true. It’s not just using your brain, sleep is vital.
Jackie: Oh, really?
Richard: Yes urn... it’s been shown that people who get a full night’s sleep, their brains perform much better than sleep deprived people.
Jackie: Oh so if you're going to do an exam it’s better to have a good night’s sleep rather than burning the midnight oil studying.
Richard: Exactly. But also, when you're asleep the brain is more active than when you're awake.
Jackie: Oh really?
Richard: [laughs] Yes
Jackie: So there's a lot more to the brain than... than I realised. But I do know also, Richard, that there is this left-side, right-side of the brain, I mean that's true, isn't it?
Richard: No. [laughs]Jackie: Oh really?
Richard: It started off with work in the '60s. These scientists were working on epilepsy and what they actually did with their patients, they cut the brain in half, or they...
Jackie: Dead patients, Richard.
Richard: No, they're alive.
Richard: The brain has no nerves. The brain cannot feel pain. So they did experiments on people that were still awake, on their brain.
Jackie: So where does the left, right thing come from?
Richard: Well, from those early experiments they thought that urn... the left side of the brain had more to do with logic and analysis and objective and the right side of the brain was more intuitive, thoughtful, subjective.
Jackie: And creative.
Richard: And creative. But now they think it’s much more complicated than that, it’s not the left and the right hand side being more dominant, there's connections, and so it’s really there's no such thing as left and right hand sides.
Jackie: So they've oversimplified it.
Richard: They've oversimplified it, yes.
Jackie: And what about linking it to left and right-handed people. Is there any link there?
Richard: There is actually because the left side of your brain controls the right side of your body.
Jackie: So that is true.
Richard: Generally true, yes.
Richard: Every part of the brain has a known function so that other myth you only use 10% of your brain, that's rubbish as well.
Jackie: Okay, but I think we can safely say though, Richard, for the listeners, if they carry on learning English, it’s going to be good for them.
Richard: Definitely. As I said before: "use it or lose it".