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For thousands of years obesity has been observed. Some of the earliest depictions of the human form in art and sculpture could be considered obese. However, it was not until the 20th century that it became common—so much so that in 1997 the World Health Organization (WHO) formally recognized obesity as a global epidemic. In June 2013 the American Medical Association classified obesity as a disease with much controversy.〔http://www.ama-assn.org/ama/pub/news/news/2013/2013-06-18-new-ama-policies-annual-meeting.page〕 In 2014, a ''Lancet'' study estimated that the number of overweight adults in the world was 2.1 billion in 2013, compared with 857 million in 1980.〔 〕 The rate of obesity also increases with age at least up to 50 or 60 years old. Once considered a problem only of high-income countries, obesity rates are rising worldwide. These increases have been felt most dramatically in urban settings. The only remaining region of the world where obesity is not common is sub-Saharan Africa. == Globally == In its June 2014 report on the problems of obesity affecting people across the globe, the Organisation for Economic Co-operation and Development (OECD) has made the following key points: * A major part of the population in the OECD countries is obese, having one obese (or overweight) child out of five children in total. Its almost a tenfold variation as recorded against the OECD nations. But the latest data collected may not provide a complete picture of the extent of the epidemic. * Over the past five years, the epidemic has spread out further. However, the rate of this epidemic's growth has slowed as compared to previously recorded data. Presently, in the United Kingdom, Italy, Korea, and the United States both "obesity" and "overweight" are virtually stable, while in Australia, Canada, France, Mexico, Spain, and Switzerland these have increased. * Many countries have built multi-stakeholder network, and that involves both the civil as well as business society factors in order to devise appropriate public health policies. These initiatives are being evaluated now for their effectiveness in delivering the right output. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Epidemiology of obesity」の詳細全文を読む スポンサード リンク
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