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Zhou Wenjia, a 21-year-old overweight young man, eats sweet potato as he waits for medical check-up at a hospital in Changsha, central China's Hunan province, November 5, 2009. Zhou dropped out of school after finishing the elementary education because of his weight, his mother said. Zhou's weight increased from 150 kilograms to 200 kilograms in the last month alone, forcing him to receive medical treatment.[Asianewsphoto]