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An effort to count the world s sloths 来数一数世界上的懒汉 A PAPER in the Lancet, shamelessly timed tocoincide with the Olympic games, comparescountries rates of physical activity. The study itdescribes, led by Pedro Hallal of the Federal University of Pelotas, in Brazil, is the mostcomplete portrait yet of the world s busy bees and couch potatoes. It suggests that nearly athird of adults, 31%, are not getting enough exercise. 《柳叶刀》①的一篇文章对世界各国人民进行体育锻炼的比率做了一个比较，而这篇文章的发表时间竟有意选在了奥运会召开之际。文章中的研究由巴西佩洛塔斯联邦大学的Pedro Hallal主导，是迄今为止对世界上的勤劳之人和电视懒虫最为完整的描绘。研究显示，世界上有将近三分之一的成年人缺乏锻炼。 That rates of exercise have declined is hardly a new discovery. Since the beginning of theindustrial revolution, technology and economic growth have conspired to create a world inwhich the flexing of muscles is more and more an option rather than a necessity. But onlyrecently have enough good data been collected from enough places to carry out the sort ofanalysis Dr Hallal and his colleagues have engaged in. 人们的锻炼比率有所下降这并不是什么新发现。自从工业革命开始后，科技和经济发展合谋创造了一个新世界，在这个世界里，锻炼身体越来越成为人们的一种选择，而非迫切的需要。但直到最近，Hallal博士和他的同事才从足够多的地区收集到了充足的数据来进行这类分析研究。 | 
