Nature Exposure and Problematic Smartphone Use Among Chinese High School Students: The Mediating Roles of Anxiety and Self-Control

Problematic smartphone use (PSU) has become an increasingly important public health concern among adolescents, yet the potential protective role of restorative environmental experiences (nature exposure) remains insufficiently understood. Under the perspective of Stress Reduction Theory (SRT) and Attention Restoration Theory (ART), this cross-sectional study examined the association between nature exposure and adolescent PSU, with anxiety and self-control tested as potential mediators. The sample comprised 700 high school students recruited from several high schools in Qinghai Province, China (52.00% female; M age = 17.01 years, SD = 0.78). Nature exposure, anxiety, self-control, and PSU were assessed using self-report measures. The results showed that nature exposure was negatively associated with PSU; anxiety and self-control significantly mediated this association both independently and sequentially. Specifically, more nature exposure was associated with lower anxiety and higher self-control, which, in turn, were associated with lower PSU. These findings suggest that restorative environmental experiences may be associated with reduced vulnerability to PSU through interconnected affective and self-regulatory processes. The present study extends existing literature by integrating emotional and attentional restoration perspectives within a unified framework linking nature exposure to adolescent PSU, and provides implications for the prevention and intervention of PSU.