Background: Four-day school week (FDSW) use has increased substantially among US districts in recent years, but limited data exist on health impacts of this school schedule. This study examined associations of reduced school exposure via FDSWs with adolescent health and risk behaviors, obesity, and food security. Methods: Self-report data from…

A successful freshman year of high school lays the foundation for the path to college: ninth-grade grades are powerful indicators of high school graduation, college access, and college degree attainment. However, the transition from eighth to ninth grade is a time when students' academic performance often declines. This report explores how Chicago…