評(píng)論
打印
As we get older, the large bowel may become
隨著年齡增長(zhǎng)
peppered with these little blow-outs,
大腸表面會(huì)布滿(mǎn)小憩室
and this is diverticular disease.
就此患上憩室癥
In 1975, Horizon reported on the hard-won discovery
1975年 地平線曾做過(guò)一項(xiàng)來(lái)之不易的報(bào)道
made by one man's trip to the ends of the earth.
由一位專(zhuān)家在非洲完成
Dr Alex Walker was trying to understand why Africans,
阿列克斯·沃爾克博士試圖了解
still living on a traditional high-fibre diet,
為何始終保持高纖維膳食的非洲人民
remained free from Western diseases like diverticular disease.
不會(huì)患上例如憩室這種西方病
In this experiment, African schoolchildren
該實(shí)驗(yàn)會(huì)發(fā)給每位非洲學(xué)生
are being given red dye marker pills
一粒紅色藥片
to measure the speed of
用于測(cè)量
transit of their food through their bodies.
人體輸送食物的速度
Dr Walker has found that in rural Africans on traditional diets,
沃爾克博士發(fā)現(xiàn)那些飲食傳統(tǒng)的非洲村民
food passes much more
食物在腸內(nèi)的傳遞速度
quickly through the bowel than in urban whites.
比生活在城市的白人要快
In the European, food waste
在歐洲 食物廢渣
may stay in the colon for as long as two weeks.
在人體結(jié)腸內(nèi)的停留時(shí)間會(huì)長(zhǎng)達(dá)兩周
In the rural Africans, it may be as little as 12 hours.
而非洲鄉(xiāng)村的人們僅僅只有12小時(shí)
