An increasing trend of malignant mesothelioma, the main cancer associated with asbestos exposure, was observed in China during 2000 and 2013 116 .
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In contrast, data from the China Health and Nutrition Survey showed a worrying trend, showing that physical activity levels experienced a steady decrease 49 – 51 , which is expected due to mechanization, the transformation of economic structure, and changes in the living environment during the urbanization process.