TO GO WITH AFP STORY by SEBASTIEN BLANC - FILES - A man works out at a slimming center in Beijing on November 11, 2011.  Dedicated slimming centres have sprung up across China over the past decade to take advantage of soaring obesity rates, as newly wealthy young Chinese swap rice bowls for burgers and bicycles for cars.  AFP PHOTO / LIU JIN (Photo credit should read LIU JIN/AFP/Getty Images)