Study: Most teens start school too early in morning to get enough sleep

The American Academy of Pediatrics urges middle schools and high schools to start no earlier than 8:30 a.m. in order to allow teens -- who are biologically programmed to stay up later at night than adults -- to get the recommended 8.5 to 9.5 hours of sleep each night. But 83% of schools do start before 8:30, according to a new study.