留学社区

目录

【托福阅读】咖啡预防癌细胞的研究

字典 |

2011-05-24 04:47

|

推荐访问

托福阅读

【 liuxue86.com - 托福阅读 】


  咖啡是风靡全球的饮品,但今后或许也会成为预防癌症的保健品。今天的新托福考试阅读练习资料就来与大家说说最新的有关咖啡预防癌细胞的研究。

新托福考试阅读练习资料

  Coffee has been linked to a reduced risk of dying from prostate cancer in a study of nearly 50,000 US men.

  Those who drank six or more cups a day were found to be 20% less likely to develop any form of the disease - which is the most common cancer in men.

  They were also 60% less likely to develop an aggressive form which can spread to other parts of the body.

  But charities say the evidence, reported in the Journal of the National Cancer Institute, is still unclear.

  They do not recommend that men take up coffee drinking in the hope of preventing prostate cancer.

  Unknown compounds

  The study looked at about 48,000 men in the US who work as health professionals.

  Every four years between 1986 and 2006, they were asked to report their average daily intake of coffee.

  During this 20-year period, 5,035 of the men were diagnosed with prostate cancer, including 642 fatal cases.

  No difference was seen between caffeinated and decaffeinated coffee, suggesting caffeine itself was not the cause.

  But even relatively small amounts of coffee - one to three cups per day - were found to lower the risk of lethal prostate cancer by 30%.

  The researchers think there may be unknown compounds in coffee that protect against the disease.

  Lead researcher Dr Kathryn Wilson, from the Harvard School of Public Health in Boston, said: "At present we lack an understanding of risk factors that can be changed or controlled to lower the risk of lethal prostate cancer.

  "If our findings are validated, coffee could represent one modifiable factor that may lower the risk of developing the most harmful form of prostate cancer."

  Commenting on the study, Dr Helen Rippon of The Prostate Cancer Charity, said other studies had not shown the link and the research evidence was still unclear.

  She added: "Although this study is a welcome addition to our knowledge, it is far from definitive and we would not recommend men who are not already habitual coffee drinkers to become so in the hope of preventing prostate cancer.

  "Heavy caffeine intake is associated with other health problems and men with benign prostate problems might well make urinary symptoms worse."

  Yinka Ebo, senior health information officer at Cancer Research UK, said: "There's no need for men to start drinking gallons of coffee in an attempt to lower their prostate cancer risk.

  "A number of other studies looking at coffee and prostate cancer have found that drinking coffee does not affect the risk of the disease, and this study only found a lower risk of advanced prostate cancer in men who drank more than six cups a day.

  "We would need to see these results repeated in other large studies before we can be sure whether coffee consumption affects the risk of prostate cancer."

  想了解更多托福阅读网的资讯,请访问: 托福阅读

本文来源:https://toefl.liuxue86.com/t/232668.html
延伸阅读
托福阅读对于很多正在备考的同学们来说,托福阅读的备考是至关重要的,那么接下来就和出国留学网一起来看看托福阅读素材:玛雅的衰落。托福阅读考试日期:2018年6月30日新托福阅读题目回
2018-07-20
2018年托福阅读的题型以及算分方式?这是同学们需要了解的事情,那么接下来就和出国留学网一起来看看吧!希望可以帮助到大家。2018年托福阅读考试需要完成3篇文章,每篇文章的字数大约
2018-07-20
对于很多正在备考托福的同学来说,备考托福阅读的资料选择是哪些呢?接下来就和出国留学网一起来看看如何搞定托福阅读?托福文章的秘密托福阅读的文章,根据出处及选材范围,可以将归为三类:说
2018-07-20
托福阅读备考有哪些常见问题?这是正在备考的同学需要知道的,那么接下来就和出国留学网来了解一下,欢迎阅读。托福阅读常见问题:一定要背单词吗?我们知道托福阅读的文章大多数都是学术类的,
2018-07-19
托福阅读的长难句是托福阅读的难点之一,同学们如何解决这个问题呢?接下来就和出国留学网一起来来看看托福阅读长难句做题法则。托福阅读长难句训练准则一:学会迅速读懂托福阅读长难句主要是用
2018-07-19
对于托福阅读素材的积累,一方面是提高对于英文的敏感以及熟练,其次也是培养自己的语感,那么下面就和出国留学网的小编一起来看看托福阅读素材:一切始于一个细胞。Unrulyorigins
2018-05-30
托福阅读既要不断的练习与积累,也有一定的技巧,为了帮助考生们更加有效的备考托福,出国留学网托福考试栏目为大家提供“托福阅读备考的重点”,希望考生们能有所收获
2016-10-28
托福阅读既要不断的练习与积累,也有一定的技巧,为了帮助考生们更加有效的备考托福,出国留学网托福考试栏目为大家提供“重视托福阅读的审题”,希望考生们能有所收获
2016-10-19
托福阅读既要不断的练习与积累,也有一定的技巧,为了帮助考生们更加有效的备考托福,出国留学网托福考试栏目为大家提供“备考托福阅读的要点”,希望考生们能有所收获
2016-10-17
托福阅读既要不断的练习与积累,也有一定的技巧,为了帮助考生们更加有效的备考托福,出国留学网托福考试栏目为大家提供“备考托福阅读的关键”,希望考生们能有所收获
2016-10-13