According to a survey by the health department of a country, the incidence of cardiovascular and cerebrovascular diseases among urban residents is nearly three times that of rural residents  Some people assert that it should be due to the high-fat, high-protein, and high-calorie food intake of urban residents
Compared with rural areas, people in cities have more common sense of preventing and treating cardiovascular and cerebrovascular diseases and better medical conditions.
 Relatively speaking, few people in rural areas have the conditions for this kind of diseases of affluence