2021-11-042021-11-042021León Pérez, J.M., Cantero Sánchez, F.J., Fernández Canseco, Á. y León Rubio, J.M. (2021). Effectiveness of a Humor-Based Training for Reducing Employees’ Distress. International Journal of Environmental Research and Public Health, 18 (21), Article 111771660-4601https://hdl.handle.net/11441/127085An increasing number of studies have demonstrated that humor can impact interpersonal relationships in organizations and employee well-being. However, there is little evidence coming from intervention studies in organizational settings. In response, we developed a training following the principles of positive psychology that aims at improving employees’ adaptive use of humor as a successful mechanism to deal with stress. In this study, we assess the effectiveness of such training and its impact on employee well-being. Results from this one-group intervention study in an emergency ambulance service (N = 58) revealed that the participants reported higher levels of cheerfulness (Z = −3.93; p < 0.001) and lower levels of seriousness (Z = −3.32; p < 0.001) after being exposed to the training. Indeed, the participants reported lower scores on psychological distress after the training (Z = −3.35; p < 0.001). The effect size of the training was medium (r = 0.31 to 0.36), suggesting that interventions to improve adaptive humor at work can be a useful resource to deal with workplace stress and foster employee well-being. These results may have interesting implications for designing and implementing positive interventions as well as for developing healthy organizations.application/pdfengAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/sense of humorcoping strategiescheerfulnessseriousnesspositive psychologypsychological well-beingsocial learning theoryinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess10.3390/ijerph182111177