RENO, NV (KRNV & MyNews4.com) -- Poor sleep habits among American children are showing up on test scores.
Researchers at Boston College had 900,000 students, teachers and parents in 50 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 and that 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.
News 4 spoke with Washoe County School District Nurse Jason Galusha at McQueen High School and he says he's noticing an increase in kids coming to him complaining of lack of sleep.
"I see it all the time when kids come in and they're just like I just need a nap, I just need to rest," Galusha says.
He says the teens he sees do admit they're staying up either watching television, on their cell phones, or listening to music.
Galusha says the CDC recommends taking gadgets out of the bedroom completely.
He also says the CDC is reporting links between lack of sleep and chronic diseases like diabetes, depression, and obesity.
All of which Galusha says, "We're seeing an increase of."