promote legislation to prevent public schools from starting earlier than 8 a.m.

Considerable research confirms the relationship between school start times, sleep deprivation, and student performance, truancy, and absenteeism, as well as depression, mood swings, impulse control, tobacco and alcohol use, impaired cognitive function and decision-making, obesity, stimulant abuse, automobile accidents, and suicide. Mounting evidence about the biology of adolescent sleep, and about the impact of later start times, shows that starting school before 8 a.m. not only undermines academic achievement but endangers health and safety. Because logistical and financial issues prevent local school systems from establishing safe and educationally defensible hours, however, federal legislation mandating start times consistent with student health and educational well-being is essential.