Aging wisely: The impact of Internet use on older adults' mental health

This study aims to explore the impact of Internet use on the mental health of older adults and its pathway mechanisms and to provide a theoretical basis and practical guidance for improving the mental health of older adults and better realizing active aging. Using cross-sectional data from the 2020 China Health and Retirement Longitudinal Survey, 6722 older adults over 60 were finally included. We conducted descriptive and correlation analyses of the data; we analyzed the correlation of Internet use on the depression level and cognitive ability of older adults using seemingly unrelated regression; we further explored the mediating role of socialization frequency in the relationship between Internet use and the depression level and cognitive ability of older adults and its differences through mediation analysis. The results showed that the mean age of older adults in this study was (68.52 ± 5.97), the mean Internet use score was (1.12 ± 1.63), the mean depression score was (8.44 ± 6.31), and the mean cognitive score was (12.17 ± 3.27). Internet use had a positive impact on the mental health of older adults, including lowering depression (β = -0.275, P < 0.05) and improving cognition (β = 0.300, P < 0.05). Socialization frequency mediated the relationship between Internet use and depression/cognitive ability (95 % CI = -0.034 to -0.008, 95 % CI = 0.007-0.022). Therefore, it is essential to encourage older adults to use the Internet, actively integrate into the digital society, promote wise aging, share the fruits of technological development, and utilize the Internet to maintain the mental health of older adults.