Chapter 21: health and medicine (505-525) physical, mental and social well being. Health : according to world health organization; health is a state of complete. 505: industrialization raises living standards, health improves. Social inequality affects people"s health: all societies distribute resources unequally, universal medical coverage: system in which the costs of essential medical services are covered by the state associated with economic development and advanced technology. Impact of social factors on human well-being is apparent in improved health. Health in low income countries: severe poverty cuts decades off long. Though we are now less vulnerable to infectious diseases, we do have our share of cancer, heart disease and mental illnesses. Age, gender, class and race: social epidemiology: study of health and disease as distributed throughout a society"s population patterns of health can be viewed in terms of age, gender, social class and race.