Is there one policy change that would help teens to improve their performance in school, in cars, and maybe in life? According to many experts, we just need to let them sleep in. A recent study out of the University of Minnesota “found that the later a school’s start time, the better off the students were on many measures, including mental health, car crash rates, attendance and, in some schools, grades and standardized test scores.”

+ And here’s another reason to sleep in. Scientists have debunked the notion that 10,000 hours makes you an expert. (But they only spent 9000 hours on the study, so who knows.)