This study investigated occupational stress and the related factors among newly graduated nurses working in acute care departments, focusing especially on resilience, a psychological characteristic that facilitates recovery from negative events. A total of 454 participants were surveyed using an anonymous self-administered questionnaire to investigate demographic data, as well as the Brief Occupational Stress Questionnaire, the Bidimensional Resilience Scale, and the evaluation of support content(emotional, evaluative, instrumental, and informational support); 128 valid responses were analyzed. Multiple regression analysis was employed to analyze the factors associated with the psychological stress response in participants divided into high-and-low-innate resilience score groups. The results indicate that “work and life satisfaction” was negatively associated with the psychological stress response in both groups, but some factors differed. In the low-resilience group, “qualitative psychological workload” was associated with psychological stress as a positive factor, whereas in the high-resilience group, “stress in interpersonal relationships at work” was associated with psychological stress as a positive factor and “information support” with as a negative one. Our findings highlight that factors reducing psychological stress vary depending on the level of innate resilience.

We aimed to clarify the influence of increase of sucrose intake on depression-like behavior in mice. Mice in the control group were fed solid feed containing 10% sucrose, and mice in the experimental group were fed solid feed containing 20% sucrose. After feeding for 4 weeks and 26 weeks, forced swim test was performed, and immobility times were measured. In addition, body weight and fasting blood glucose were measured after 4 weeks and 26 weeks, and weight of feces a day was measured only after 26 weeks. There were no significant differences in immobility time, body weight, fasting blood glucose, and feces weight between the experimental group and the control group. Our findings suggest that increase of sucrose intake in mice does not cause depression-like behavior.