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    你的大脑或比别人的大脑衰老得快 如何脑保持年轻?

    kira86 于2019-03-07发布 l 已有人浏览
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    研究发现,有些人的大脑比其他人的大脑衰老得更快。专家分享保持大脑年轻的方法。
      小E英语?#38431;?#24744;,请点击播放按钮开?#30142;?#25918;……

    大脑老化.jpg
    Study Finds Some Brains Age Quicker Than Others

    研究发现 有些人的大脑比其他人的大脑衰老得更快

    From VOA Learning English, this is the Health & Lifestyle report.

    你正在收听的是美国之音慢速英语节目《健康与生活方?#20581;?#25253;道。

    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.

    大脑跟身体的其它部分一样,会老化。不过,并非所有大脑的衰老方式?#23478;?#26679;。比如,女性的大脑衰老速度可能比男性的大脑衰老速度更慢。这是美国一项来自密苏里州圣路易斯华盛顿大学医学院的研究发现。

    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.

    该学院的研究人员想弄清大脑是如何利用糖的。为此,他们研究了年龄在20到80岁之间的200多名男性和女性的大脑。他们利用PET扫描来观察大脑中氧和糖的流动。

    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.

    研究人员发现,女性的大脑看起来比同龄男性的大脑年轻将近4岁。他们的发现表明,随着年龄的增长,男性和女性的大脑对糖的利用可能会有所不同。

    But the researchers do not know why. Some scientists suggest that hormones could play a part.

    但研究人员也不知道原因是为什?#30784;?#19968;些科学家认为荷尔蒙也起了一定的作用。

    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.

    该研究的主要作者马努·戈亚尔?#24039;?#32463;学和神经科学系的助理教授。在《科学日报》网站上发表的一份声明?#26657;?#25096;亚尔解释了这项研究的重要性。

    How the brain uses fuel, he wrote, "might help us understand some of the differences we see between men and women as they age."

    他写道,“大脑如何利用营养(糖分)可能有助于我们理解男性和女性之间随着年龄增长会出现的一些差异。”

    What happens as our brains age?

    当我们的大脑老化?#20445;?#20250;出现什么情况?

    On its website, the National Institute on Aging describes an aging brain.

    美国国家老龄化研究所(全美抗衰老协会)在其网站上这样描述一个衰老的大脑。

    Parts of the brain get smaller, "especially those important to learning and other complex mental activities." Communication between neurons may decrease. Blood flow may lessen and inflammation may increase.

    大脑的某些部分变小了,“尤其是那些?#26434;?#23398;习和其它复?#26377;?#29702;活动很重要的部分。”神经元之间的交流可能会减少。血流可能会减少,炎症可能会增加。

    All these changes slow our cognitive abilities. We have trouble remembering things, finishing complex tasks or paying attention.

    所有这些变化都减缓了我们的?#29616;?#33021;力。我们在记忆、完成复杂任务或集中注意力方面都有困难。

    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?

    考虑到科学家们对衰老已有的了解,最近关于大脑性别差异的研究又引出了一些问题。首先,如果女性的大脑衰老速度比男性的慢,那为什么患有老年痴呆症的女性反而更多?

    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.

    阿尔茨海默?#29616;?#26159;一种渐进(进行性发展的)脑?#32771;?#30149;,这种脑失调病情不可逆,它慢慢地破坏记忆和思维能力,最终破环完成最简单任务的能力。

    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.

    阿尔茨海默?#29616;?#27809;有治愈方法。不过,医生表示,50%到60%的阿尔茨海默?#29616;?#30149;例可以通过对生活方式做一些简单的改变来预防。

    Ways to keep your brain young

    保持大脑年轻的方法

    Whether you are a man or a woman, here are some things you can do to keep your brain young and healthy.

    无论你是男性?#25925;桥?#24615;,这里有一些方法可以让你的大脑保持年轻和健康。

    * 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.

    睡眠是保持大脑年轻最简单也是最好的方法。专家建议每晚尽量保证7个小时的睡眠。

    * 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.

    ?#24656;?#36827;行三到四次有氧运动,?#30475;?0到40分钟。锻炼可?#22253;?#21161;你培养脑细胞,?#32422;?#25913;善大脑中的血液流动情况。

    * 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.

    健康饮?#22330;?#21307;生表示,任何?#23381;脑?#26377;?#20040;?#30340;饮食对大脑也有?#20040;Α?#20854;?#24184;?#20010;例子是地中海饮食法,吃大量蔬菜(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。

    * Do activities that make you excited and happy.

    做一些让你兴奋和快乐的活动。

    * Spend time with family and friends.

    花时间和家人朋友在一起。

    The researchers of the brain study published their findings in February in Proceedings of the National Academy of Sciences.

    参与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。

    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.

    戈亚尔和他的团队计划继续研究这一课题。目前,他们正在观察一组成年人,看?#27492;?#30528;时间的推移,“大脑看起来更年轻”的人是否不太可能出现思维问题。

    And that's the Health & Lifestyle report. I'm Anna Matteo.

    以上就是本期《健康与生活方?#20581;?#25253;道的全部内容。我?#21069;?#23068;·马特奥。

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