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(单词翻译:双击或拖选)
By David McAlary
As the prevalence of heart disease increases worldwide, researchers have found that people in developing countries suffer from it for the same reasons people in industrial nations do. Smoking, fatty diets, and stress top the list of heart attack risks.
Heart disease is the largest cause of death worldwide. Eighty-percent of the cases occur in developing nations, but most of what we know about the causes comes from studies among people in Western countries, mainly middle aged1 white men.
Now a new study of 30,000 men and women in 52 nations on every inhabited continent shows that the rest of the world is no different.
"The factors that cause heart attacks are the same," says Sonia Anand, this is physician Sonia Anand,at McMaster University in Hamilton, Ontario, Canada, where the findings were analyzed2. "What we found is nine simply measured risk factors predict the majority of heart attacks around the world."
The researchers say these risk factors account for 90 percent of heart attacks internationally and are consistent across all regions and ethnic3 groups, young or old, male or female.
Two of factors stand out, smoking and fatty diets. Together they account for two-thirds of heart attack risk.
"The two most important things that we can do as a society, one is to prevent smoking or [encourage] promote smokers4 to stop, and the second is that we can see the adverse5 consequences of weight gain or obesity," says Dr. Anand.
Surprisingly, the international study found the third most-important cause of heart disease is emotional stress. Dr. Anand says it is responsible for one-fifth of heart attacks and is independent of bad life style habits like smoking and poor diet.
"Some people think, well, you are stressed out so you are going to eat more or smoke more, and that is why you get your heart attack," she notes. "What we are seeing is there is an independent relationship between stress and having a heart attack. So that is an important area for us to explore because prior studies weren't large enough or precise enough to really show this relationship."
Other but lesser6 risk factors for heart attack are high blood pressure and diabetes7. Surprisingly genetic8 inheritance seems to account for only a tiny portion of this disease, but one percent.
Protecting against heart disease are consumption of fruits and vegetables, moderate amounts of alcohol, and regular physical exercise.
While industrial countries have enjoyed a decline in heart disease in the past few decades, death rates have increased dramatically in low and middle income nations. Dr. Anand says the findings can help governments determine how to counter the trend.
"There is a prediction that countries like India and China will experience an epidemic9 of heart disease by the year 2020," she adds. "These studies allows those countries now to begin to put in place prevention policies to try and curb10 the epidemic."
The study results appear in the medical journal Lancet.
David McAlary, VOA News, Washington
注释:
prevalence 疾病的流行
inhabited 有居民的
continent 大陆
McMaster University 麦克马斯达大学
Hamilton 汉密尔顿
Ontario 安大略
consequence 结果
gain 增长
diabetes 糖尿病
alcohol 酒精
epidemic 流行的
Lancet 《柳叶刀》
1 aged | |
adj.年老的,陈年的 | |
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2 analyzed | |
v.分析( analyze的过去式和过去分词 );分解;解释;对…进行心理分析 | |
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3 ethnic | |
adj.人种的,种族的,异教徒的 | |
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4 smokers | |
吸烟者( smoker的名词复数 ) | |
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5 adverse | |
adj.不利的;有害的;敌对的,不友好的 | |
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6 lesser | |
adj.次要的,较小的;adv.较小地,较少地 | |
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7 diabetes | |
n.糖尿病 | |
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8 genetic | |
adj.遗传的,遗传学的 | |
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9 epidemic | |
n.流行病;盛行;adj.流行性的,流传极广的 | |
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10 curb | |
n.场外证券市场,场外交易;vt.制止,抑制 | |
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