Sample demographics.

The study proposes adding a new component to the Job Demands-Resources Theory, termed ’personal demands’. Impulsivity serves as an illustrative example of personal demands. A cross-sectional questionnaire was conducted and a total of 394 (Female = 59.6%) workers were surveyed. Standardized survey questionnaires were used in the study, i.e. The Utrecht Work Engagement Scale (UWES-9), Life Roles Self-Efficacy Scale (LRSES) and UPPS-P Impulsive Behaviour Scale. The obtained results indicate that Work Engagement correlates negatively with Impulsivity scales (lack of premeditation (r = -.22; p < .001), lack of persistence (r = -.27; p < .001), positive urgency (r = -.12; p, < .01) and negative urgency (r = -.12; p < .01)). In addition, Positive Urgency, moderates the relation between Self-efficacy and Work Engagement, in line with the theory (B = .133; SE = .067; t = 1.98; p < .05; LLCI = .0007; ULCI = 0.2643). This confirmed the fact, that impulsivity should be included in the JDR theory as a ‘personal demand’.