Cognitive neighborhood social capital significantly reduces mental illness tendency and enhances happiness among floating older adults in China, while also mediating the relationship between structural social capital and mental health outcomes.
Key Findings
Results
Structural neighborhood social capital is positively correlated with happiness but has limited ability to mitigate mental illness tendency among floating older adults.
Data were derived from 659 questionnaires completed by respondents aged 55 and above in three cities in Guangdong Province
Structural equation modeling (SEM) was employed to test the relevant hypotheses
Structural social capital showed a direct positive association with happiness but did not significantly directly reduce mental illness tendency
Guangdong Province was selected because it has relatively higher concentrations of floating older adults in China
Results
Cognitive neighborhood social capital significantly reduces mental illness tendency and enhances happiness among floating older adults.
Cognitive social capital demonstrated dual mental health benefits, addressing both the negative dimension (mental illness tendency) and positive dimension (happiness)
The study adopted a positive psychology perspective to define mental health, capturing both absence of illness and presence of well-being
Cognitive social capital encompasses perceptions such as trust, norms, and reciprocity within the neighborhood
Findings were based on SEM analysis of 659 floating older adult respondents
Results
Cognitive neighborhood social capital acts as a mediating variable linking structural neighborhood social capital to mental health outcomes.
The mediation pathway ran from structural social capital through cognitive social capital to mental health
This suggests that structural elements (e.g., participation in community organizations) improve mental health partly by fostering cognitive social capital (e.g., trust and solidarity)
SEM was used to test this mediation hypothesis
The mediation effect was identified for both mental illness tendency and happiness outcomes
Results
Neighborhood social capital has a more significant effect on mental health among floating older adults with poor physical health compared to those with better physical health.
Heterogeneity analysis was conducted to identify differential effects across subgroups
Poor physical health was identified as a moderating condition that amplified the role of neighborhood social capital on mental health
This finding suggests welfare-dependent subgroups require targeted interventions
The floating older adults face dual pressures of aging and mobility, resulting in heightened risk of poor mental health
Results
Neighborhood social capital has a more significant effect on mental health among floating older adults who migrate for family care purposes compared to other migration motivations.
Heterogeneity analysis revealed differential effects based on reason for migration
Those who move for family care purposes (e.g., to support adult children or grandchildren) represent a subgroup with stronger dependence on neighborhood social capital for mental health
This subgroup is described as influenced by China's intergenerational support culture
The authors note the necessity of targeted interventions for welfare-dependent subgroups of floating older adults
Discussion
The study extends social capital theory to non-disaster environments by examining its role in the mental health of a mobile aging population in an urbanization context.
Prior research on social capital and mental health has been more commonly conducted in disaster or crisis settings
This study applies the framework to the context of urbanization-driven population mobility in China
The floating older adult population in China has increased rapidly due to urbanization and intergenerational support culture
The dual-dimensional model (structural and cognitive) was applied to neighborhood-level social capital specifically
What This Means
This research suggests that social connections within a neighborhood play an important role in the mental well-being of older adults who have migrated away from their hometowns in China — a population that has grown rapidly due to urbanization and the cultural norm of grandparents relocating to help raise grandchildren. The study surveyed 659 people aged 55 and older across three cities in Guangdong Province and found two types of neighborhood social capital matter differently: structural social capital (like joining community groups and attending local activities) was linked to greater happiness but did not directly reduce signs of mental illness, while cognitive social capital (like feeling trust, solidarity, and a sense of belonging in the neighborhood) both reduced mental illness tendencies and boosted happiness. Importantly, cognitive social capital also served as a 'bridge,' meaning that participating in community activities only improved mental health when it also helped people feel genuinely connected and trusting of their neighbors.
This research also suggests that not all migrating older adults are equally affected. Those with poorer physical health and those who moved specifically to provide family care (such as helping with grandchildren) benefited the most from neighborhood social capital, making them priority groups for community-level mental health support. These findings highlight that simply creating opportunities for social participation may not be enough — communities also need to cultivate genuine feelings of trust and belonging among newly arrived older residents.
The practical implication is that community programs aimed at improving mental health among this population should go beyond organizing activities and focus on building authentic social bonds and neighborhood cohesion. Policies targeting Chinese cities with large floating older adult populations could consider designing resettlement communities that actively foster interpersonal trust and mutual support, particularly for those who are physically vulnerable or socially isolated due to their caregiving roles.
Huang J, Luo Z, Yao S. (2026). The dual effects of social capital on mental health: a study of structural and cognitive dimensions among the floating older adults in China.. Frontiers in public health. https://doi.org/10.3389/fpubh.2026.1831417