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
Recent reports suggest that tea can cause brittle bones—but you’ll probably be safe if you think less than a gallon a day. D
Recent reports suggest that tea can cause brittle bones—but you’ll probably be safe if you think less than a gallon a day. D
admin
2016-10-18
37
问题
Recent reports suggest that tea can cause brittle bones—but you’ll probably be safe if you think less than a gallon a day.
Do you fancy a cup of tea? We drink, on average, three mugs a day. But you might want to try another strong alcohol after hearing the case of a 47-year-old woman, published in the New England Journal of Medicine(NEJM), who developed brittle bones and lost all of her teeth after drinking too much tea.
Tea may not be so great for prostates(前列腺)either. Last year, research from the University of Glasgow found that men who drank more than seven or more cups of tea a day had a 50% higher risk of prostate cancer. And in 2009 a paper in the British Medical Journal showed that drinking very hot tea(70℃ or more)increased the likelihood of oesophageal(食管的)cancer.
Still gasping for that cup of tea? There is some evidence that tea can be good for you too, with antioxidant properties, so maybe you’re not actually drinking enough of the stuff.
The poor woman in the NEJM study is not alone. There are a few other cases of people who have damaged their bones through too much tea. But she(like those in other studies)was drinking excessive amounts: 100 ~ 150 tea bags a day to make 12 cups of tea. A litre of tea can contain up to 9 mg of fluoride(氟化物). which in excess can cause skeletal fluorosis(氟中毒). reducing bone quality and causing pain and stiffening of the ligaments(韧带). Other studies show you generally need to drink a gallon a day for three decades to develop this condition.
You also shouldn’t worry about the Glasgow study as it wasn’t designed to show that drinking tea actually caused prostate cancer. All it proved was an association and people were only asked how much tea they drank at the start of the study, which went on for about 28 years.
The National Cancer Institute in the U. S. concludes that the evidence isn’t good enough to say tea either harms or helps our health. However it does seem sensible in the light of the BMJ study to wait for your tea to cool down for a few minutes.
Black tea, which makes up 75% of the world’s consumption, may have healthy properties from its plant chemicals called polyphenols(多酚), which are antioxidants. Green tea contains more polyphenols but isn’t so nice to dunk digestive into.
A review of the evidence in the European Journal of Clinical Nutrition, sponsored by the Tea Council—which, the authors say, had no part in the study—found the research showed more than three cups of black tea a day reduced heart disease. It found no evidence of harm "in amounts typically consumed". So as long as you drink less than a gallon of tea a day you should be absolutely fine.
Black tea is considered as healthy drink because______.
选项
A、it contains antioxidants
B、it is made from plant
C、polyphenols are added to it
D、it helps one digest
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/weY7777K
0
大学英语四级
相关试题推荐
CollegeGraduatesWorkingasCommunityWorkers1.一些大学生选择毕业后去社区工作2.这样做的好处3.我的看法
Writeashortessaybasedonthepicturebelow.YoushouldstartyouressaywithabriefaccountofReadingBooks.Youshouldwr
A、Recommendhertohisnewcompany.B、Givehersomeadviceonherwork.C、Getherpromotedtobethemanager.D、Writeheralett
SocialAging:ABillionShadesofGreyA)WarrenBuffettisasymbolofAmericancapitalism.At83,healsostandsforanoticeab
A、Acquireinformationfromsatellitesmoreefficiently.B、Realizefullcoverageofareathesatellitepassesover.C、Buildmore
Politicsisanemotionalbusiness.Still,manypeoplefoundthemselvesunusuallymovedbythehistoricpresidentialinauguration
TVLinkedtoLowerMarksA)Theeffectoftelevisiononchildrenhasbeendebatedeversincethefirstsetswereturnedon.Nowt
TVLinkedtoLowerMarksA)Theeffectoftelevisiononchildrenhasbeendebatedeversincethefirstsetswereturnedon.Nowt
A、Hedoesn’tknowwhathelikes.B、Hehasn’tmadethefinaldecisionyet.C、Heneedsadvicefromtheadmissionscounselor.D、He
随机试题
加热温度越高,氧化脱碳现象越严重。()
患者,女性,45岁,肝硬化病史7年,午饭后突然呕吐褐色胃内容物,量约500ml,来院急诊。最易出现的并发症是
关于完全垄断市场,下列说法正确的有()。Ⅰ.完全垄断使稀缺资源得不到良好的配置,存在资源的浪费Ⅱ.在短期,如果对产品的需求者能接受垄断厂商制定的大于平均成本AC的价格.那么该厂商能获得超额利润Ⅲ.在短期,如果产品价格低于短
甲、乙、丙共同投资设立一普通合伙企业。合伙协议约定:甲以现金人民币5万元出资,乙以房屋作价人民币8万元出资,丙以劳务作价人民币4万元出资;各合伙人按相同比例分配盈利、分担亏损。合伙企业成立后,为扩大经营,向银行贷款人民币5万元,期限为1年。甲提出退伙,鉴于
所谓学生发展,就要兼顾教育对学生的()功能。
在美国所有捐献的血液中有45%是O型的。由于O型血适用于任何人,所以当在没有时间测定患者是何种血型的危急时刻,O型血是不可缺少的。O型血是唯一可与其他任何血型相融的血型,所以它可以输给任何受血者。然而正是由于这一特殊用途,O型血长期处于短缺状态。如果
There______nothingmorefordiscussion,themeetingcametoanendhallanhourearlier.
Thepassagemainlydiscusses______.Thephrase"biologicalcarboncopies"(para.4)refersto______.
Telecommuting—substitutingthecomputerforthetriptothejob—hasbeenhailedasasolutiontoallkindsofproblemsrelatedt
TimberwolvesareMarchingtoaNewTune森林狼按新的节拍在前进Forthepastsevenyears,KevinMcHalehasstruggl
最新回复
(
0
)