AUTHOR=Yang Qianke , Lin Shichong , Zhang Zhuyun , Du Shuhao , Zhou Dan TITLE=Relationship between social activities and cognitive impairment in Chinese older adults: the mediating effect of depressive symptoms JOURNAL=Frontiers in Public Health VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2024.1506484 DOI=10.3389/fpubh.2024.1506484 ISSN=2296-2565