poor sleep habits among american children are showing up on test scores...
researchers at boston college had nine hundred thousand students, teachers and parents in fifty countries fill out surveys about sleep habits.
they compared the responses to test scores, and found roughly three-quarters of students' academic performance suffered because they were sleep deprived.
experts say this is not a permanent problem -- parents should make sure kids get at least seven to nine hours of sleep each night. taking away ipads and cell phones at bed time helps!