Evolutionary I/O Psychology: Working with Human Nature. Presentation at the Amsterdam Leadership Lab on 13 November 2023. Talk based on a Handbook-chaper in Evolutionary Psychology.  On how modern workplaces are evolutionary mismatched with our adaptive work psychology. This mismatch is the deeper cause of many problems in the workplace such as job stress, burn-out, physical problems such as backpain, absenteeism and turnover. I describe how cultural evolutionary processes in work organizations  can reduce these mismatches to some extent.