This study aimed to examine the underlying relationship between migration status and depressive symptoms among middle-aged and older adults in China. Data were derived from three waves of panel data (2011, 2013, and 2015) from the China Health and Retirement Longitudinal Study. Two-level regression models and generalized structural equation modeling were run to fit the data. The results showed that migration status of the respondents could ameliorate their depression ($\mathsf{\beta }$ = −0.02, p < 0.01), so did internet use ($\mathsf{\beta }$ = −0.02, p < 0.001), and social participation ($\mathsf{\beta }$ = −0.06, p < 0.001). The indirect effects of migration status on depression through internet use and of internet use on depression through social participation existed. The effects of migration status, internet use, and social participation in decreasing depression were discussed. Provided the associations among migration status, internet use, social participation, and depression, attention should be paid on increasing protective aspects of migration among middle-aged and older adults, such as internet use and social participation, to enhance their mental health.

Given the large number of internal migrant workers in China and their contribution to the development of the society and country, their life satisfaction somewhat signifies the success of their integration into the new environment. This study is to explore the influence of subjective relative deprivation on life satisfaction among rural-to-urban migrant workers in China. Additionally, linking social capital was used as a mediator and friendship network size as a moderator. This study was designed as cross-sectional and 2442 rural-urban migrants in both Xiamen (N = 1197) and Changsha (N = 1245) were recruited by using a multi-stage stratified probability proportional to size sampling method. The results showed a significantly negative mediating effect of linking social capital with a negative association between subjective relative deprivation and life satisfaction. Moreover, the number of friends moderated the effect of linking social capital on life satisfaction. This study confirmed a moderated mediation model and highlighted the importance of linking social capital and subjective relative deprivation in deciding life satisfaction of Chinese rural-to-urban migrant workers. Polities and purposeful action for enhancing social integration (i.e., interaction with community members and taking part in social and political activities) are advised to build a well-off society in China.

Research has identified the status of being unmarried as a risk factor for poor sleep quality. Few studies have focused on the relationship between bachelor status and sleep quality. Moreover, little is known about the underlying mechanisms that may mediate or moderate this relationship. This study tested the mediating role of life satisfaction and moderating role of traditional value of children in the relationship between bachelor status and sleep quality among Chinese men. Data were derived from the 2018 wave of China Family Panel Studies (CFPS). The working sample included 12,102 Chinese men. The moderate mediation model was used to examine the mechanisms between bachelor status and sleep quality. Results showed that life satisfaction partially mediated the association between bachelor status and sleep quality. The mediating effect of life satisfaction was moderated by traditional value of children. Specially, the mediation effect was stronger for men with higher traditional value of children. The implications for future studies and practices are also discussed in this study.