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
Find Yourself Packing It On? Blame Friends Obesity can spread from person to person, much like a virus, researchers are reportin
Find Yourself Packing It On? Blame Friends Obesity can spread from person to person, much like a virus, researchers are reportin
admin
2009-06-15
91
问题
Find Yourself Packing It On? Blame Friends
Obesity can spread from person to person, much like a virus, researchers are reporting today. When one person gains weight, close friends tend to gain weight, too.
Their study, published in The New England Journal of Medicine, involved a detailed analysis of a large social network of 12,067 people who had been closely followed for 32 years, from 1971 to 2003.
The investigators knew who was friends with whom as well as who was a spouse or sibling or neighbor, and they knew how much each person weighed at various times over three decades. That let them reconstruct what happened over the years as individuals became obese. Did their friends also become obese? Did family members? Or neighbors?
The answer, the researchers report, was that people were most likely to become obese when a friend became obese. That increased a person’s chances of becoming obese by 57 percent. There was no effect when a neighbor gained or lost weight, however, and family members had less influence than friends.
It did not even matter if the friend was hundreds of miles away, the influence remained. And the greatest influence of all was between close mutual friends. There, if one became obese, the other had a 171 percent increased chance of becoming obese, too.
The same effect seemed to occur for weight loss, the investigators say. But since most people were gaining, not losing, over the 32 years, the result was, on average, that people grew fatter.
Dr. Nicholas A. Christakis, a physician and professor of medical sociology at Harvard Medical School and a principal investigator in the new study, said one explanation was that friends affected each others’ perception of fatness. When a close friend becomes obese, obesity may not look so bad.
"You change your idea of what is an acceptable body type by looking at the people around you," Dr. Christakis said.
The investigators say their findings can help explain why Americans have become fatter in recent years--each person who became obese was likely to drag along some friends.
Their analysis was unique, Dr. Christakis said, because it moved beyond a simple analysis of one person and his or her social contacts and instead examined an entire social network at once, looking at how a person’s friend’s friends, or a spouse’s sibling’s friends, could have an influence on a person’s weight.
The effects, he said, "highlight the importance of a spreading process, a kind of social contagion, that spreads through the network."
Of course, the investigators say, social networks are not the only factors that affect body weight. There is a strong genetic component at work, too.
Science has shown that individuals have genetically determined ranges of weights, spanning perhaps 30 or so pounds for each person. But that leaves a large role for the environment in determining whether a person’s weight is near the top of his or her range or near the bottom. As people have gotten fatter, it appears that many are edging toward the top of their ranges. The question has been why.
If the new research is correct, it may say that something in the environment seeded what some call an obesity epidemic, making a few people gain weight. Then social networks let the obesity spread rapidly.
选项
A、Their friends.
B、Their neighbours.
C、Their family members.
D、Their colleagues.
答案
A
解析
本题的答案可以在文章的第四段中找到。第四段中提到研究者发现,当周围朋友发福时,人最容易发胖。而邻居则不会对人产生影响,甚至家庭成员的影响也不如朋友大。至于同事,文章中并没有提到。
转载请注明原文地址:https://kaotiyun.com/show/2QGd777K
本试题收录于:
职称英语综合类基础题库职称英语分类
0
职称英语综合类基础
职称英语
相关试题推荐
ConsumerGoodsConsumerproductsaregoodsandservicesdestinedforthefinalconsumerforpersonal,family,orhouseholdus
Tocoolitself,arhinocerossoaksinmudorwaterbecauseitsthickhidehasnosweatglands.
HowtoEducateChildrenAsEleanorRooseveltoncesaid,“Universalhumanrightsbegininsmallplaces,closetohome.”And
ChangesinMuseumsMuseumshavechanged.Theyarenolongerplacesthatone“should”visit,theyareplacestoenjoyandl
CollegeSportsintheUSCollegesportsintheUnitedStatesareahugedeal.AlmostallmajorAmericanuniversitieshavef
CollegeSportsintheUSCollegesportsintheUnitedStatesareahugedeal.AlmostallmajorAmericanuniversitieshavef
Thecheetahisconsideredthefastestofalllandanimals.
A.rarelyissuccesssomysteriousB.largerewardsfollowC.IeliminatethecandidateD.weshoulddropthemandmovetosometh
Anewsystemofqualitycontrolwasbroughtintoovercomethedefectsinthefirm’sproducts.
RecyclingAroundtheWorldRecyclingisoneofthebestenvironmentalsuccessstoriesofthelate20thcentury.Butwecoulddo
随机试题
无需人为干涉,SDH网络在极短的时间内从失效的故障状态自动恢复传输所携业务的过程,称为()。
对工业制成品交易,一般在品质条款中灵活制定品质指标通常使用()
患者,女性,68岁。因结肠癌入院治疗,判断其有无营养不良的依据是
男性,50岁,病程6个月,左侧肢体乏力起病,逐渐出现头痛和语言笨拙。入院检查眼底视乳头水肿,左上下肢肌力Ⅳ级,左下肢病理征(+)。CT检查可见颅内一低密度病灶,周围无水肿,增强后无强化
下列四种屋架形式,受力最合理的是()。
[2010年第160题]下列哪项指标不是住宅适用性能中隔声性能的评定内容?
美国、日本输往中国货物使用非针叶树木质包装的,报检时提供由美国、日本官方检疫部门出具的《使用非针叶树木质包装声明》。
法的效力可以分为()。
下列选项中说法正确的是()。
根据所给资料,回答问题。截至2012年6月底,全国实有企业1308.57万户,比上年底增长4.42%;实有注册资本77.20万亿元,比上年底增长6.86%。其中,内资企业实有1264.89万户,比上年底增长4.67%;实有注册资本65.90万亿元
最新回复
(
0
)