This study aims to prove and explain the hypotheses regarding the influence of mental health, workload, and work stress on employee performance at SPX Express Tulungagung Hub. This study used a quantitative approach. The sampling technique employed purposive sampling, with a population of 101 employees and a sample of 50 respondents. The analysis technique used was multiple linear regression analysis, processed using SPSS version 25. Based on the results of the study, it was found that partially, the mental health variable had a positive and significant effect on employee performance. The workload variable partially had a negative and insignificant effect on employee performance. Meanwhile, the work stress variable partially had a negative and significant effect on employee performance. Simultaneously, the variables of mental health, workload, and work stress had a significant effect on employee performance. The contribution of these three variables in this study was 35%, while the remaining 65% was influenced by other variables not included in this study.
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