AUTHOR=Li Kehan , Omar Dev Roxana Dev , Li Wenhao 

TITLE=Physical activity and happiness of college students: chain mediating role of exercise attitude and sleep quality

JOURNAL=Frontiers in Public Health

VOLUME=13

YEAR=2025

URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2025.1544194

DOI=10.3389/fpubh.2025.1544194

ISSN=2296-2565