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To investigate the relationship
為了探究飲用咖啡與
between coffee consumption and colo-rectal cancer
結腸直腸癌之間的關系
a team of researchers from Harvard Medical School
一組來自哈佛醫學院的研究人員
compared data from the nurse's health study
對比了護理健康研究和健康專家隨訪研究中的
which was comprised of women, and the health
相關數據，這倆個研究分別以女士和男士
professionals study which was comprised of men.
作為各自的研究對象
These large data sets allow for a high level of
這些龐大的數據集考慮到了用有高度說服力
statistical power to determine correlations among
的數據統計來確定
dietary factors and disease occurrence.
飲食因素與疾病發生的相關性
The conclusion of the work was that the
這項研究的結果是
consumption of caffeinated coffee, tea with caffeine
飲用含咖啡因的咖啡，茶或僅僅攝入咖啡因
or caffeine intake alone had no effect on risk of
對患結腸或直腸癌的風險沒有任何影響
either colon or rectal cancers in either men or women.
這一結果均適用于男士和女士
Of interest the researchers did find that consumption
出于興趣，這些研究人員確實發現
of 2 or more cups of decaffeinated coffee per day
每天喝兩杯或兩杯以上不含咖啡因的咖啡
significantly reduced the risk of rectal cancers.
明顯降低了患直腸癌的風險
As with all human studies it is not possible to
同所有的人類研究一樣
determine what specific components of coffee
要想確定咖啡中哪些特定的成分
may be responsible for these effects.
具備這些作用是不可能的
Many lifestyle factors impact risk of cancer and
很多生活方式的因素影響了患癌癥的風險
although the research factors these into
盡管該項研究將這些因素都考慮在他們的
their statistical analysis it is not fully possible to
數據分析中，但不可能完全
eliminate the impact of all these factors.
排除所有這些因素的影響
Coffee, tea and other caffeinated beverages do not
咖啡，茶和其他含咖啡因的飲品
appear to increase the risk of any forms of cancer
好像不會影響患任何類型癌癥的風險
and in fact may provide a protective effect on
事實上在某些類型的癌癥方面還可能發揮
some forms of cancer. Coffee containing beverages,
一定的保護作用，含咖啡的飲品，咖啡
coffees and teas are widespread in the market place.
和茶廣泛遍布于市場中
Children and teens are increasing consuming
更小年紀的兒童和青少年對這類產品的
these products at younger ages. These products may
攝入正在增加，這些飲品中糖的含量可能較高
contain high amounts of sugar and low amounts of the
咖啡和茶中所包含的有益成分
beneficial compounds found in coffee or tea.
的含量卻相對較低
It is always wise to read labels carefully and to
仔細閱讀標簽并重點監督兒童糖
monitor sugar and caffeine consumption
和咖啡因的攝入總是明智的
especially in children. The impact of lifelong exposure
終身飲用的影響還沒有被評估
has not been assessed; however caffeine has been
然而咖啡因的飲用
consumed by humans throughout history.
貫穿于人類的歷史
Further research will be needed to more fully
進一步的研究需要更充分的了解
understand the many compounds in coffee
咖啡中的各種成分
to identify its role in the cancer process.
以確定其在癌癥過程中的作用
Coffee is considered safe for most people but should be
對大多數人來說咖啡是安全的，但是
avoided with any adverse side effects.
如果出現任何不利的副作用應當停止飲用
Moderate consumption of these beverages
適當飲用這類飲品
can be part of a healthy lifestyle.
可以成為健康生活方式的一部分
