VOA慢速英语(翻译+字幕+讲解):男性大脑比女性衰老得快?
日期:2019-03-06 17:23

(单词翻译:单击)

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听力文本

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Study Finds Some Brains Age Quicker Than Others
From VOA Learning English, this is the Health & Lifestyle report.
The brain, like any other body part, gets old. However, not all brains age the same way. For example, women's brains may age more slowly than men's. That is the finding of a U.S. study from Washington University School of Medicine in St. Louis, Missouri.
Researchers there wanted to find out how the brain uses sugar. To do that, they studied just over 200 brains of men and women aged 20 to 80. They used PET scans to look at the flow of oxygen and sugar in the brains.
The researchers found that the brains of women looked nearly four years younger than the brains of men who were born in the same year. Their findings suggest that the brains of men and women may use sugar differently as they age.
But the researchers do not know why. Some scientists suggest that hormones could play a part.
The lead author of the study, Manu Goyal, is an assistant professor of neurology and of neuroscience. In a statement published on the website Science Daily, Goyal explained why the work is important.
How the brain uses fuel, he wrote, "might help us understand some of the differences we see between men and women as they age."
What happens as our brains age?
On its website, the National Institute on Aging describes an aging brain.
Parts of the brain get smaller, "especially those important to learning and other complex mental activities." Communication between neurons may decrease. Blood flow may lesson and inflammation may increase.
All these changes slow our cognitive abilities. We have trouble remembering things, finishing complex tasks or paying attention.
Given what scientists already know about aging, the recent study about sex differences in the brain has raised some questions. For one, if women's brains age more slowly than men's, why do more women get Alzheimer's disease?
Alzheimer's disease is a progressive brain disorder that cannot be stopped. It slowly destroys memory, thinking skills and, eventually, the ability to carry out the simplest of tasks.
Alzheimer's does not have a cure. However, doctors say that between 50 to 60 percent of Alzheimer's cases can be prevented by simple lifestyle changes.
Ways to keep your brain young
Whether you are a man or a woman, here are some things you can do to keep your brain young and healthy.
Sleep is the easiest and best thing you can do keep your brain young. Experts say to try to get around seven hours of sleep each night.
Get aerobic exercise for 30 to 40 minutes three to four times a week. Exercise helps you grow brain cells and improves blood flow in the brain.
Eat a healthy diet. Doctors say any diet that is good for the heart is also good for the brain. One example is the Mediterranean diet with lots of vegetables (especially leafy greens), fruits (especially blueberries), nuts, whole grains, red wine (in moderation) and fish.
Do activities that make you excited and happy.
Spend time with family and friends.
The researchers of the brain study published their findings in February in Proceedings of the National Academy of Sciences.
Goyal and his team plan to continue researching this topic. Currently, they are following a group of adults to see if people with "younger-looking brains" are less likely to develop problems with their thinking over time.
And that's the Health & Lifestyle report.
I'm Anna Matteo.

重点解析

1.find out 发现

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I hope we can find out about it.
我希望我们能查清此事p]&@U%];pR1StBH@

2.a group of 一组

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Suddenly the door opened and a group of children burst in.
门突然打开,闯进了一群孩子iGBf|jNXN_&bL#k^

3.over time 随着时间流逝;超时

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Over time, the technology is diffused and adopted by other countries.
久而久之,这项技术传播到了其他国家并得到利用c)9r-uKB7S

4.healthy diet 健康的饮食

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A healthy diet should consist of wholefood.
健康饮食应由全天然食物构成54e4pAh6KLsedMmM76=Z

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5.We have trouble remembering things, finishing complex tasks or paying attention.

have trouble (in) doing 做某事有困难

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I never have trouble sleeping in a strange place.
我从来不择席%CmNXO3xmy=GXX9D
Many parents frankly admit that they have trouble bringing up their children.
许多家长坦承,在教育子女的问题上存在困惑6Nq7&~l]9cB0849=

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6.We have trouble remembering things, finishing complex tasks or paying attention.

paying attention 专心

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I was still kicking myself for not paying attention.
我仍在怪自己没有注意YjO[vYkhX-NPx.q
More and more countries is paying attention to this game.
越来越多的国家开始重视这项运动的发展o1TGsEo0Tz3O6No]=c0+

参考译文

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研究发现男性大脑比女性衰老得快
这里是VOA慢速英语健康生活报道ypsNR^N4_%@IRzvkj
大脑就像身体的其他部位一样会老化c[174N7pOkJ]=Hgyf~qY。然而,并不是所有大脑的衰老方式都一样B6%LROP;bPP7BATu%k6S。例如,女性的大脑衰老速度可能比男性缓慢+!~XPi9q(&sI5Vq^FPn。这是美国密苏里州圣路易斯华盛顿大学医学院的一项研究结果O#@|qtenNp6
那里的研究人员好奇大脑是如何消耗糖分的.YTO3,GoCY。为此,他们研究了200多名20到80岁之间的男性和女性的大脑LnL8fh2=@_Kg。他们使用PET(正电子发射断层扫描技术)扫描来观察大脑中氧气和糖分的流动C)I1zz[^%_I_FP)PQly
研究人员发现,女性的大脑看起来比同龄男性年轻将近4岁-c+~+E4|,UnD。他们的发现表明,随着年龄增长,男性和女性的大脑在消耗糖分方面可能会有所不同78u^DhaWMX

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研究发现男性大脑比女性衰老得快.jpg
但是研究人员不知道原因|!P9atoV=#|D8+h,b。一些科学家认为荷尔蒙也起了一定的作用3ew3|fMfd]miaM3Q
该研究的首席作者马努·戈亚尔(Manu Goyal)是神经学和神经科学的助教E,a~v6LpdCsRO。在《科学日报》网站上发表的一份声明中,戈亚尔解释了这项研究的重要性sA9l]^Ru]][xxg
他写道,(研究)大脑如何使用燃料“可能有助于我们理解随着年龄增长,男性和女性之间的一些差异ecxzH(ni%dcL6-。”
当大脑衰老时会发生什么?
美国国家衰老研究所在其网站上描述了一个衰老的大脑;VUNtL3+vM
大脑某些区域开始萎缩,“尤其是那些对学习和其他复杂的心理活动很重要的区域N%k+_PQ)JAu;^ID_。”神经元之间的交流可能会减少tf3PNI2K=O=;xz7Dm。血流量可能会增加,炎症也可能增加S~[y1o1y3]6d
所有这些变化都会减缓我们的认知能力d5AafBwtA!]mlb(K#!b。我们逐渐在记忆、完成复杂任务或集中注意力方面出现困难!uqyoD^@I_WK&cS).
考虑到科学家们已经对衰老有所了解,这份关于大脑性别差异的研究提出了一些问题yzxQj(NyP7%X+oHQ]Sh。首先,如果女性的大脑衰老比男性缓慢,为什么女性患老年痴呆症的比例高?
老年痴呆症是一种无法阻止的进行性大脑疾病50rO!B,,26]。它会慢慢破坏记忆,思维能力以及完成最简单任务的能力LLPmWRqDmn(B]#9SG
老年痴呆症目前无法治愈X8^8va!D-*-Uk;P^ooX@。然而,医生说,50%到60%的老年痴呆症可通过简单的生活方式的改变来预防;0CkfO~b#p2JD
保持大脑年轻的方法
无论你是男性还是女性,下面几点建议可以让你保持大脑的年轻和健康_p#+k5+a(=r
睡眠是保持大脑年轻最简单也是最佳的方法&Sj]J]-kMv。专家建议每晚尽量保证7个小时的睡眠=[@*gBCnt+
每周进行三到四次的有氧运动,每次30到40分钟ug6YnK&x!m=1J。锻炼能够促进大脑细胞生长,改善大脑中的血液流动v8&JmR822Y;[
健康饮食ju.R.1v)v+I6LT。医生说,任何对心脏有益的饮食也对大脑有好处0OK^)qIU@Dli。以地中海饮食为例,它包含大量蔬菜(尤其是绿叶蔬菜)、水果(尤其是蓝莓)、坚果、全谷物、红酒(适量)和鱼类g~&SVK+!Tn2
参加一些让你兴奋和快乐的活动BZNa;%-1&In!
花时间与亲友相处q85twnG=iqUVIoa8
这项大脑研究的研究人员于今年2月在《美国国家科学院院刊》上发表了他们的研究结果zEzKM!Lw-_2
戈亚尔和他的团队计划继续研究这一课题t1x&,R~kduj~vP9-。目前,他们正在追踪一组成年人,看看随着时间的推移,那些拥有“看起来更年轻的大脑”的人是否不太可能会出现思维问题TH3YC&7O]=2U~J)
以上为健康生活报道的全部内容O(ft*iF0h_f
安娜·马特奥为您播报k&jpM%S&@g+6JeXzf]m

译文为可可英语翻译,未经授权请勿转载!

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