It strengthens your bones to be able to handle large amounts of pressure and weight on your body. I know this isn't related, but when a person breaks their ankle or something else they tend to heal quicker because they're athletes. So one way or another, increasing strength, helps to increase your capacity for exercising.
Chinease are moving from the rural areas to fast growing subarbs, like here in the U.S. china is moving to farming to technology so this produces more jobs for the people and higher education
