首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A new, theoretical analysis finds that about half of the risk factors for Alzheimer’s disease (老年痴呆症) are potentially changeable
A new, theoretical analysis finds that about half of the risk factors for Alzheimer’s disease (老年痴呆症) are potentially changeable
admin
2022-01-18
48
问题
A new, theoretical analysis finds that about half of the risk factors for Alzheimer’s disease (老年痴呆症) are potentially changeable, and that reducing them could substantially decrease the number of new cases of disease worldwide, according to a study to be presented Tuesday at the Alzheimer’s Association International Conference.
The study is the first known analysis that tries to quantify and compare how risk factors are associated with Alzheimer’s. It will be published Tuesday on the journal Lancet Neurology’s website after the conference presentation.
Factors that increase one’s risk for Alzheimer’s that are considered modifiable include diabetes (糖尿病) , high blood pressure, obesity, smoking, sedentary behavior, depression and low educational level, say the authors from the University of California, San Francisco (UCSF).
In the US, physical inactivity is the biggest changeable factor, accounting for 21% of the risk for Alzheimer’s, followed by depression and smoking. Added together, the factors account for about 50% of the risk.
If these risk factors were decreased by just 10% , about 184,000 Alzheimer’s cases in the US and 1.1 million cases worldwide could be prevented, according to the research. A reduction of 25% on all seven risk factors could prevent nearly half a million cases in the US and more than three million worldwide, the analyses showed.
" The estimates suggest that in the population, up to half of Alzheimer’s cases could be modifiable," said Deborah Barnes, a professor at UCSF who will present the results. "If we changed those risk factors…it could have this huge impact at the population level," she said in an interview.
One caveat (警告) to these findings: They are based on mathematical models that predict what might happen if the assumptions on which the model was based are real. In this case, the researchers assumed that the risk factors caused Alzheimer’s disease, which means that if they were modified, the rates of Alzheimer’s would change as well.
In reality, the causes of Alzheimer’s are still unclear, and it hasn’t been proven that stopping smoking, for example, actually lowers one’s risk of getting it.
These estimates were calculated based on published data about how frequently the risk factors occur in the population as well as the extent to which each factor increases one’s risk of Alzheimer’s, known as relative risk.
The next step in this work is to do prevention trials to try to modify these risks to see if they can actually keep off Alzheimer’s, Dr. Barnes says. She hopes to conduct a trial on physical activity, because it seems like the biggest bang for your buck, because it is known to help the brain, the heart and mood, she says.
Why are the findings based on mathematic models and assumptions?
选项
A、Because Alzheimer’s disease is an assumed one.
B、Because Alzheimer’s disease cannot be prevented.
C、Because the causes of Alzheimer’s disease are still not clear.
D、Because the symptoms of Alzheimer’s disease can hardly be changed.
答案
C
解析
由题干中的findings和mathematic models and assumptions定位到原文第七、八段推理判断题。本题考查这些研究成果为什么是基于数学模型和假设而得出的。第七段指出,这些研究结果仅是通过数学模型计算和假设得出的,下一段指出该病的真正起因尚未可知。C)“因为老年痴呆症的病因尚不明确”与原文表述一致,故为答案。
转载请注明原文地址:https://kaotiyun.com/show/hVx7777K
0
大学英语六级
相关试题推荐
A、Thefactorsthataffectourdecision-making.B、Somewaystodevelopourskillsandtalents.C、Someguidelinesonhuntingpart-
Googlerecentlyintroducedanewservicethataddssocial-networkingfeaturestoitspopularGmailsystem.Theserviceiscalled
为了满足广大人民群众日益增长的体育需求,也为了纪念北京奥运会成功举办,中国政府宣布每年的8月8日为“全民健身日”(NationalFitnessDay),以推动全民健身,增强国民体质。随着社会的发展,人们锻炼的方式也变得更加多样化。老年人通常在早晨聚集
A、Eatingmoresaltmeansmoreheartattacks.B、Lesssaltissureofreducingmanyheart-relateddiseases.C、Eatinglesssaltmay
A、Eatingmoresaltmeansmoreheartattacks.B、Lesssaltissureofreducingmanyheart-relateddiseases.C、Eatinglesssaltmay
A、Outdooractivitiescancuremanydeadlydiseases.B、Peoplewithmentaldiseasesbenefitthemostfromoutdoorexercise.C、Heal
A、Healthcarecrisiscan’tbesolvedinashorttime.B、Morepeoplearedyingfrompreventablediseases.C、Healthcarecrisisis
A、Theydidn’thavetopayheavytaxestoEngland.B、Theydidn’thaveimportantpoliticalrights.C、TheywereruledbytheKingf
A)Withhisdrywitandimpeccable(无瑕疵的)style,JamesBondhasbeendefyingdeathandruiningtheplansofevilmadmeninservi
随机试题
用于测量消费者对于喜欢或不喜欢商品次序之间的差异距离的量表是
外贸立法管理手段的特点主要有()
ForanyEnglishman,therecanneverbeanydiscussionastowhoistheworld’sgreatestpoetandgreatestdramatist.Onlyonena
下肢顺行IV—DSA对比剂的总量为
彩色多普勒血流显像仪安全性标准,下列哪项是关键性要求()
下列哪项是假性动脉瘤的常见发病原因
男,46岁,体重60kg,1小时前被火烧伤:双前臂(I度),躯干前和双足(Ⅱ度),双上臂和双小腿(Ⅲ度)患者第一个24小时的补液量为
关税的强制执行措施有()。
某商场在开业前要选择经营商业的种类,现有甲、乙、丙、丁四类商品可供选择。由于对未来市场需求无法做到比较精确的预测,只能大致估计为:需求量较高、需求量中等、需求量较低三种情况。这三种情况的预计损益值如下表所示:根据以上资料,回答下列问题:该商
打开工作簿文件Exc.xlsx,对工作表“产品销售情况表”内数据清单的内容按主要关键字“分公司”的降序次序和次要关键字“季度”的升序次序进行排序,对排序后的数据进行高级筛选(在数据清单前插入四行,条件区域设在A1:G3单元格区域,请在对应字段列内输入条件,
最新回复
(
0
)