VOA慢速英语(翻译+字幕+讲解):美国修改高血压标准
日期:2017-11-15 16:55

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US Changes Definition for High Blood Pressure
From VOA Learning English, this is the Health & Lifestyle report.
Recently, two leading heart organizations changed the definition of what it means to have high blood pressure. Because of this change, the number of Americans with high blood pressure jumped from 32 percent to 46 percent.
Doctors at the American Heart Association and the American College of Cardiology now classify anyone with a blood pressure reading of 130 over 80 as having high blood pressure.
Before, the cutoffs for high blood pressure had been a top number of 140 and a lower number of 90.
Health experts at the website Science Daily say blood pressure is defined by two numbers. The top number, called systolic, represents the force with which your heart pumps blood into the blood vessels. The bottom, called diastolic, is a measure of the resistance to the blood flow in the body's blood vessels.
The American Heart Association says the new guidelines are designed to help people take steps to control their blood pressure earlier. High blood pressure can cause heart disease and stroke – the two leading causes of death in the world.
The new guidelines set blood pressures in these categories:
Normal Blood Pressure: Under 120 over 80
Elevated Blood Pressure: Top number 120-129 and bottom number less than 80
High blood pressure around the world
A 2016 study by the World Health Organization and hundreds of scientists found that the number of people in the world with high blood pressure had reached 1.13 billion.
However, the study defined high blood pressure as 140 over 90. Should they adopt the new guidelines, the number of people with high blood pressure worldwide will most likely increase.
Scientists at Imperial College London led the study and looked at blood pressure measurements from nearly 20 million people from the years 1975 to 2015.
In this study, they found that the number of people with high blood pressure nearly doubled in 40 years.
Researchers found that over half of the world's adults with high blood pressure lived in Asia. Around 226 million people in China have high blood pressure, along with 200 million in India.
This study also found that in 2015 people in South Korea, the USA and Canada had the lowest high blood pressure rates in the world. With the new U.S. guidelines, the U.S. ranking in the world could change.
The researchers from Imperial College London published their findings from the study in the January 2017 edition of the medical journal The Lancet.
Does this mean more medication is necessary?
Health experts are warning people to not rush to medication to lower their high blood pressure. They advise that there are many lifestyle changes a person can make to effectively keep their blood pressure at a healthy level.
Regular exercise and losing weight can lower your blood pressure. In some people, making changes in diet can make a big difference. Eating more fruits, vegetables, fish, beans, nuts and seeds can help. Eating less sodium and drinking less alcohol can also help.
And that's the Health & Lifestyle report.
I'm Anna Matteo.

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重点解析

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1.high blood pressure 高血压

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Prime Minister Pavlov had been taken ill with high blood pressure.
总理帕夫洛夫因患高血压病倒了W6okkJI,Xe

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2.around the world 世界范围内

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There were television crews and pressmen from all around the world.
来自世界各地的电视工作者和新闻记者齐聚一堂BfQ6%;qt=H&-RWG

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3.blood flow 血流量

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Massage may help to increase blood flow to specific areas of the body.
按摩有助于增加身体特定部位的血液流量Ql+BQpz,5ZnkOb7oC3

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4.heart disease 心脏病

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A hundred years ago coronary heart disease was virtually unknown in Europe and America.
在100年前心脏病几乎不存在于欧洲和美洲R]t%7t]X~9jtZZE,8l

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5.In some people, making changes in diet can make a big difference.

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make a big difference 有意义;产生影响

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It doesn't take a lot our time and money to make a big difference.
我们不需要很多的时间和金钱就可以起到重大作用1f&Ji))Q()
Whether he comes or not will not make a big difference.
他来与不来将没有什么很大的影响pq=kToLe;!o(xLXV[

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6.The American Heart Association says the new guidelines are designed to help people take steps to control their blood pressure earlier.

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take steps to 采取措施

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She is not content with her present lot and wishes to take steps to improve it.
她对自己目前的生活并不满意,希望能采取措施改善它j[avvEk[b^kZ%Z
The directors will take steps to insure against possible failure.
董事们将采取措施,以防可能出现的失败1_n=_Y+yk._Jxei

参考译文

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美国修改高血压标准
这里是VOA慢速英语健康生活报道94pAf_hLpdqO2KB
近日,两家大型心脏病组织修改了高血压的定义b[f[@vx4=T;Ta。美国高血压患者地比例因此从32%升至46%rQ!60H94zz6E37|
如今,美国心脏协会和美国心脏病学会的医生将血压读数大于130/80的人定义为高血压患者,HIR+&8jX^hLOx5
在此之前,高血压临界值是指高压140和低压90qNBnQI#|[(
《科学日报》网站的专家指出,血压由两个数字来定义5uN]-Z8Msh^4。高压(收缩压)是指心脏将血液泵入血管的力量l)+ra6H7Y;!54s1YM5Gh。而低压(舒张压)是人体血管中血流阻力的测量方法^f.CadLOF[;REC2
美国心脏协会表示,新标准是为了帮助人们早些采取措施控制血压N-RBz]ehADs*w1XG。高血压会引发心脏病和中风——这是当今人类两大主要死亡原因i!c+Vpzi)%

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美国修改高血压标准.jpg
新标准将血压设定为以下类别:
正常血压:高压<120,低压<80
血压升高:高压120-129,低压低于80
1级高血压:高压130-139,低压80-89
2级高血压:高压≥140,低压≥90

世界各地的高血压情况
世界卫生组织和数百位科学家在2016年的一项研究中发现,全球高血压患者已达到了11.3亿0!6,QR&M*G#(;1UivzX
然而,该研究将高血压的标准定为高压140,低压90bym4]b-Y|q。如果他们采纳新标准,那么全球的高血压患者人数很可能会增加6spt*zaLKh&IDZxKMW
伦敦帝国理工学院的科学家主导了这项研究,他们分析了1975年至2015年间近2000万人的血压测量结果%#@jxWQ;ix
他们在该研究中发现,高血压患者人数在40年内几乎翻了一倍Ke#+6dT+^X7WO
研究人员发现,全球超半数的成年高血压患者生活在亚洲pjGT7gG-,gb|,_。中国约有2.26亿人患有高血压,而印度有2亿人y9S;9&ZLcTUj
该研究还发现,2015年,全球居民患高血压比例最低的为韩国、美国和加拿大8SbZxLjP0&。不过根据新标准,美国的排名可能会出现变数DZqQQ.Mw8j[+
伦敦帝国理工学院的研究人员将研究结果发表在2017年1月版的《柳叶刀》医学杂志上j_[w(,_g)IhzMHC-x
这是否意味着需要服药?
健康专家警告称,不要急于服用降压药来降低血压;j.Uo80ZQl4O(~rOLw。他们建议,高血压患者可以调整生活方式,有效地将血压指数维持在相对健康的水平UwZ=;fQBHc
经常锻炼、减肥可以有效降低血压+m8wvJU%4N。有些人证明,改善饮食有很大的影响tG9ir!j@5Vtmec~。多吃水果、蔬菜、鱼、豆类、坚果和瓜子对身体十分有益1xUmh-^DJv!xjYFffyoG。另外,低盐、少酒也会起到一定作用zpcRlhe)L(]
以上为健康生活报道的全部内容NY%Z,4JWi_8Vz.q.
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译文为可可英语翻译,未经授权请勿转载!

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