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The transition to college involves a number of novel stressors for young adults and represents a period of heightened risk for the onset or worsening of diverse mental health problems. The presence of natural mentors may be one factor which alleviates risk for mental health problems in college first‐year students. Using a diverse sample of 275 first‐year college students, the present study examined the effects of different types of natural mentors within students’ support networks on internalizing symptoms during the first semester of college. In addition, analyses explored whether different student approaches to emotion regulation were one mechanism by which natural mentors influence internalizing symptoms. Path analyses indicated that students with a greater number of close family member/family friend mentors reported less emotion suppression, which in turn accounted for the associations between these mentoring relationships and reduced depressive symptoms and worry at follow‐up. In contrast, less emotionally close mentors, such as teachers or coworkers, did not significantly shape emotion regulation strategies or internalizing symptom outcomes. Results have implications for the design of more targeted interventions that promote emotional well‐being in college first‐year students.

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Background The biological association between electromagnetic fields (EMF) and idiopathic environmental intolerance attributed to EMF (IEI-EMF) has not been established. To assess the physiological changes and symptoms associated with exposure to EMF, we conducted a randomized crossover provocation study. Methods We recruited 58 individuals with IEI-EMF (IEI-EMF group) and 92 individuals without IEI-EMF (control group). In a controlled environment, all participants received EMF signals mimicking those from mobile phone base stations in a randomized sequence under the blinded condition. During the course, participants reported their symptoms and whether they perceived EMF, and we monitored their physiological parameters, including blood pressure (BP), heart rate (HR), and HR variability. Results The IEI-EMF and control groups reported similar frequencies of symptoms during both the provocation and sham sessions. No participant could accurately identify the provocation. In both groups, physiological parameters were similar between the two sessions. The control group, but not the IEI-EMF group, had elevated HR when they perceived EMF exposure. Conclusions No symptoms or changes in physiological parameters were found to be associated with short-term exposure to EMF, and no participant could accurately detect the presence of EMF. Moreover, the participants in the control group, but not those in the IEI-EMF group, had elevated HR when they perceived EMF.