Work, so fundamental to well-being, has its darker and more costly side. Work can adversely affect our health, well beyond the usual counts of injuries that we think of as 'occupational health'. The ways in which work is organized - its pace and intensity, degree of control over the work process, sense of justice, and employment security, among other things - can be as toxic to the health of workers as the chemicals in the air. These work characteristics can be detrimental not only to mental well-being but to physical health. Scientists refer to these features of work as 'hazards' of the...