Aug 21, 2012 2:19 PM by Ian Cross
TONIGHT AT 10 - Are you addicted to your iPad? Tethered to your tablet? You're not alone - millions of us are, and doctors say that could be the reason many of us have trouble sleeping at night.
News 4 Tucson's Allison Alexander speaks to the experts and explains the "Blue Light Blues," tonight at 10 p.m.