eHealth Literacy and Adolescent Health in Japanese Female High School Students in Sendai: Cross-Sectional Study

This study highlights the importance of eHealth literacy in adolescent health care. Higher eHealth literacy is linked to lower levels of loneliness, higher self-esteem, and reduced premenstrual symptom severity, particularly feeling overwhelmed. Although the cross-sectional design limits causal conclusions, these findings suggest that higher eHealth literacy is associated with better mental and reproductive health in adolescents. Future research should adopt longitudinal designs, include more diverse populations-such as male adolescents-and explore additional contributing factors to better elucidate these associations.