一項(xiàng)研究稱我們每天食用食物比十九世紀(jì)七十年代幾乎多600卡路里。


Hints:
None

選材／校對(duì)／翻譯：hqj5715
Which seems totally counter intuitive, given the fact of people consuming more calories than ever at restaurants. The bottom line, it seems likely, is that obesity has more than one cause. For example, 40 years ago, many more Americans did work that required physical labor, like in agriculture and factory jobs. Today, the bulk of those jobs has gone overseas and given way to more sedentary office jobs that mostly involve sitting at a computer. According to some studies, the average American office workers burn 140 fewer calories per day than they used to. Over months and years, those extra calories can add up. And if we're also eating more these days, that seems like a good recipe for serious weight gain.
這一看似完全相反的觀點(diǎn)，表明人們要比在飯店中消耗更多卡路里這一事實(shí)。 最可能的解釋是肥胖并不僅有一種原因。比如，40年前，許許多多的美國(guó)人從事需要體力勞動(dòng)的工作，比如農(nóng)業(yè)和工業(yè)。現(xiàn)在，大批的那種工作已經(jīng)轉(zhuǎn)移到國(guó)外替代的是許多需要久坐的辦公室工作，而且其中大部分需要坐在計(jì)算機(jī)前面。 多項(xiàng)研究表明，美國(guó)辦公室工作人員平均每天要比以前少燃燒140卡路里。日積月累，這些多余的能量便會(huì)累積起來(lái)。如果我們也這些日子也同樣吃這么多，那么這看似便是獲得超重的一種很好的方法。