Environmental psychology has long been interested in the effect of different environments on the health of users (Lawrence, 2001). The work environment has also recently started to be studied as a promoter or hinderer of health. Shift work has been studied as one of the work contexts in which a lot of health problems occur. Characteristics of shift-work schedules have implications in three different areas of life: physical well-being, mental well-being and work-to-family conflict. More specifically rotating night shift work disrupts circadian rhythms and is associated with sleep disturbances (Akerstedt et al, 2002), coronary heart disease (Brown et al, 2009), gastrointestinal disturbance, reproductive dysfunction, as well as decreasement in psychological well being (Harrington, 2001). Moreover, social, family and marital relationships could be disrupted (Costa, 2003).However, shift work is necessary in some institutions such as hospitals and arguments in favor of maintaining it refer to productivity and maximizing costs. With these considerations in mind, the present research aims to explore the perception of workers of the characteristics of the work environment that most affect their quality of life within the context of shift-work, in order to formulate recommendations for policy-making that would contribute to diminishing the negative effects.As part of a larger study, this paper will present the results of focus groups done with shift-workers in the three most important cities of the province of A Coruña (Galicia-Spain). The information gathered was analyzed with the qualitative software ATLAS.ti, which allowed for the identification of the main dimensions that are affected by characteristics of work environments. Results show the importance of organizational communication and participation of workers in the decision-making processes, especially related to schedules and spaces. Enhanced participation of workers, enablement and upward communication are key aspects of the improvement of work environments.These results are useful for organizations, as they provide further evidence of the beneficial effects of listening to the voice and demands of shift workers, in order to improve their work conditions. The second part of this research will focus on determining the relative importance of the different predictors of the quality of life dimension. Finally, all the results will be used as a guide for the design and implementation of programs aiming at improving the quality of life and work conditions of shift workers