For Teens, Falling Asleep Gets Harder with More Screen Time

[Wireless News]

Teenagers who while away the hours on an electronic device — whether it's a computer, cell phone, tablet or TV — tend to have more problems with sleeping at night, a new study finds. "One of the surprising aspects was the very clear dose-response associations," said the study's lead researcher Mari Hysing, a researcher and a psychologist at Uni Research Health, a research company based in Norway.

More... (http://news.yahoo.com/teens-falling-asleep-gets-harder-more-screen-time-075712129.html)