December 4, 2018 8:27 am Salk Institute Studies Effect of Screen Time on Sleep The Salk Institute in La Jolla is researching the effect of screen time on sleep and how hopping on your mobile device before bedtime could impact your nighttime rest. NBC 7’s Chris Chan reports. US & World Videos 0:28 A Vermont state trooper plunges into icy pond to rescue 8-year-old girl 2:59 Keep these travel etiquette tips in mind this holiday season 2:20 Bodies of Missing Men Found in Rubber Bins Inside Storage Unit 1:42 Hundreds of Golden Retrievers Walk a Mile for the Official Boston Marathon Dog 1:51 Typewriter Shop Owner Receives Gift From Tom Hanks
