Inclusion Criteria:  nurse aged from 23 to 40 years a PTS score of 64 or lower on the PTSD checklist for DSM-5 (PCL-5) developed by Weathers et al., revised by Weathers et al., and translated into Korean by Kim et al., nurse who can access the program through a computer or mobile nurse who understand the purpose of the research and voluntarily agree to participate in the research.  Exclusion Criteria:  presence of psychiatric conditions with hallucinations and delusions diagnosis of an intellectual disability that would make understanding the intervention procedure difficult. Although a standard cut-off was not present in the PCL-5, women who exceeded 80% (64 points) of the total score were excluded to rule out high-risk women with severe trauma.