囧研究：這世界上到底是胖子多還是瘦子多？

The number of obese people in the world now outnumber the underweight people, according to analysis of the trends of adult body-mass index in 200 countries over the last 40 years. The major study, published in the medical journal The Lancet, shows that the number of obese has risen to 641 million from 105 million in 1975.
根據200個國家最近40多年的成年人體重指數（BMI）趨勢分析，全球肥胖人口數量已超過體重過輕人口數量。一份發表於醫學期刊《柳葉刀》（The Lancet）上的主要研究表明，全世界肥胖人口已經從1975年的1.05億增長到現在的6.41億。

The proportion of obese men has more than tripled (3.2 percent to 10.8 percent) and obese women has more than doubled (6.4 percent to 14.9 percent) since 1975. At the same time, the proportion of underweight people fell more modestly, by around a third in both men (13.8 percent to 8.8 percent) and women (14.6 percent to 9.7 percent).
自1975年以來，肥胖男性比例已增長爲原來的3倍還多（從3.2%上升到10.8%），而肥胖女性比例是原來的2倍多（從6.4%升至14.9%）。與此同時，體重過輕人羣所佔比例輕度下降，男性（從13.8%降至8.8%）和女性（從14.6%下降到9.7%）均縮減1/3左右。

"Over the past 40 years, we have changed from a world in which underweight prevalence was more than double that of obesity, to one in which more people are obese than underweight," says senior author Majid Ezzati from the School of Public Health at Imperial College London. "If present trends continue, not only will the world not meet the obesity target of halting the rise in the prevalence of obesity at its 2010 level by 2025, but more women will be severely obese than underweight by 2025."
倫敦帝國學院公共衛生學院高級學者馬吉德·伊扎提說：“在過去的40年裏，我們的世界發生了很大變化。以前，體重過輕的人數是肥胖人數的兩倍多，但現在肥胖人口已經超過體重過輕人口了。如果照目前的形勢發展下去，到2025年時，不但難以實現將世界肥胖人口數量控制在2010年的水平不再增長這一目標，而且還會出現更多嚴重肥胖而不是體重過輕的女性。”