Born at a normal weight, little Pang Ya now tips the scales at 41.5 kilograms, which is about as much as an adult Chinese woman. Pang Ya weighed around 4 kilograms, when she was born, but reached 20 pounds in just 8 months, and ever since then she kept piling on the pounds. Now her worried parents are seeking medical help. They admit the toddler has a very healthy appetite, but claim doctors have no idea what is wrong with their daughter. Pang Ya, from Taocun town, Shanxi province, is just one of over 60 million obese people in China. The numbers doubled between 1992 and 2002. That may have something to do with the opening of several fast-food chains in China.