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
Cancer is used generically for more than 100 different diseases, including malignant tumors of different sites such as breast, s
Cancer is used generically for more than 100 different diseases, including malignant tumors of different sites such as breast, s
admin
2013-01-18
66
问题
Cancer is used generically for more than 100 different diseases, including malignant tumors of different sites such as breast, stomach, colon, lung and mouth. (1)
The disease arises principally as a consequence of individual exposure to the substances that cause cancer in what individuals inhale, eat and drink, or are exposed to in their personal or work environment.
Personal habits, such as tobacco use, dietary and physical activity patterns--well as occupational and environmental conditions--rather than genetic factors, play the major roles in the development of cancer.
Many of the chronic diseases risk and the diseases themselves overlap. In developed countries, cancer is the second-biggest cause of death after cardiovascular disease (CVD), and epidemiological evidence points to this trend emerging in the less developed world. This is particularly true in countries of "transition" or middle income countries such as in South America and Asia. Already more than half of all cancer cases occur in developing countries.
There are approximately 20 million people living with cancer at the moment; by 2020 there will an estimated 30 million. And the impact is far greater than the number of cases alone would suggest. (2)
Regardless of prognosis, the initial diagnosis is often perceived bv patients as life-threatening, with over one-third of sufferers experiencing clinical anxiety and depression.
Cancer can also be profoundly distressing as well as economically disruptive to patients’ families. The clinical care of cancer patients is a costly element in public health budgets.
(3)
Dietary factors are estimated to account for approximately 30% of cancers in Western countries, making diet second only to tobacco as a preventable cause of cancer.
This proportion is thought to be about 20% in developing countries and is projected to grow. As developing countries become urbanized, patterns of cancer, particularly those most strongly associated with diet and physical activity, tend to shift towards the patterns of economically developed countries. Cancer rates also change as populations move between countries and adopt different dietary patterns.
The relative importance of cancers as a cause of death is increasing. The incidence of lung cancer and cancers of the colon and breast generally increases in parallel with economic development, as stomach cancer declines. Cancer is also strongly associated with social and economic status. Cancer risk factors are highest in groups with the least education. In addition, patients in the lower socioeconomic classes have consistently poorer survival rates than those in higher social class.
In recent years, substantial evidence has pointed to the link from overweight and obesity, to many types of cancer such as breast and kidney. (4)
The composition of the diet is also important since fruit and vegetables may have a protective effect by decreasing the risk for some cancer types such as oral and gastric cancer.
Regular physical activity has also been seen to have a protective effect in reducing the risk of breast cancer. High intake of preserved meat or red meat might be associated with increased risk of colorectal cancer. Another aspect of diet clearly related to cancer risk is the high consumption of alcoholic beverages, which convincingly increase the risk of oral cavity, liver and breast cancers.
The wealth of knowledge that already exists about cancer risk factors provides obvious and ample scope for action to reduce the cancer burden of all countries. After tobacco, overweight and obesity seems to be the most important avoidable cause of cancer.
(5)
Given that poor nutrition, physical inactivity, obesity, tobacco and alcohol are risk factors common to other chronic diseases such as CVD, type 2 diabetes, and respiratory diseases, conducting a cancer prevention program within the context of an integrated chronic disease prevention program would be an effective national strategy.
选项
答案
饮食结构也很重要,因为水果和蔬菜有保护作用,可以降低口腔癌和胃癌的发病率。
解析
转载请注明原文地址:https://kaotiyun.com/show/vQ2O777K
0
考博英语
相关试题推荐
______anyadvicewhichyoucangetfromtheinterviewerandfollowupsuggestionsforimprovingyourpresentationandqualifica
Aparticularareainwhichassumptionsandvaluesdifferbetweenculturesisthatoffriendship.FriendshipsamongAmericansten
Atthebeginningofthenineteenthcentury,workersweredifferentiatedbyskill,income,andrelativeopportunitiesforadvance
Likehighpay?Haveself-confidence?Knowfood;writewell?Ghostwritingmaybeacareermoveformotivatedwriterswhoarewill
Thebusinessofadvertisingistoinventmethodsofaddressingmassiveaudiencesinalanguagedesignedtobeeasilyaccessible
Mywife______anolddictionarylastnight.
Anthropologyisascience______anthropologistsusearigoroussetofmethodsandtechniquestodocumentobservationsthatcanb
Whileotherssatathomestudyingpapersonthesubject,Jeffersongotintoaboatandmade______observations.
Whenshelearnedthatshebroketheworldrecord,shefeltanirresistible______tocryatthewinner’sstand.
______thattheymayeventuallyreducetheamountoflabourneededonconstructionsitesby90percent.
随机试题
采用格式条款订立合同的,如果格式条款和非格式条款不一致的,()。
法洛四联症x线检查心影形状为
采用定额单价法和实物量法编制施工图预算的主要区别是()
根据有关规定,对证券投资基金从上市公司分配取得的股息红利所得,扣缴义务人在代扣代缴个人所得税时按70%计算应纳税所得额。()
股份有限公司变更为有限责任公司的,公司变更前的债权、债务由变更后的公司承继。()
2015年1月20日,甲公司(房地产开发公司)以出让方式取得一宗土地使用权,实际成本为900万元,预计使用年限为50年。2015年2月2日,甲公司在上述地块上开始建造商业设施,建成后作为自营住宿、餐饮的场地。2016年9月20日,商业设施达到预定可使用状态
关于茶文化,说法不正确的是()。
下列程序段执行后,内存变量S的值是CLEARS=0FORI=10TO100STEP10S=S+IENDFOR?S
给定程序中,函数fun的功能是:判定形参a所指的NxN(规定N为奇数)的矩阵是否是”幻方”,若是,函数返回值为1;若不是,函数返回值为0。”幻方”的判定条件是:矩阵每行、每列、主对角线及反对角线上元素之和都相等。例如,以下3×3的矩阵就是一个”
MyViewsontheLuxuries1.奢侈品消费日益增长2.产生这种现象的原因3.我的看法
最新回复
(
0
)