Work intensification is a psychosocial risk that has been increasing in recent decades and may have been accentuated after the COVID-19 pandemic. Its effects on health are negative, but they can be moderated by contextual and personal factors. The aim of this study was twofold: to analyze the effect of work intensification on workers' stress, anxiety, and depression and to explore the role of workplace curiosity in these relationships. The study design was cross-sectional, and a total of 766 Spanish workers (58.9% female) with different occupations completed the survey. The results showed that work intensification was associated with the symptomatology of stress, anxiety, and depression, with a medium effect size. Women workers showed higher work intensification, but its association with mental health was equally strong for both genders. Workers with higher levels of the workplace curiosity dimension "stress tolerance" showed less impaired mental health in the presence of work intensification. However, workers with higher levels of the workplace curiosity dimension "deprivation sensitivity" showed more symptoms of stress, anxiety, and depression when faced with high work intensification. The results were discussed in terms of their contributions to the field of study of work intensification, the future research they could inspire, and the prevention and intervention measures they could motivate.
Keywords: Work intensification; anxiety; depression; stress; workplace curiosity.