That Smartphone or Tablet Is Keeping Your Kid Awake

Anyone who's raised teenagers knows how tough it can be to get them to go to bed on time — and how difficult it is to get them out of bed when they don't. This was a problem long before young people curled up at night with a smartphone or tablet, but the gadgets may be making the problem worse.That's the conclusion of a Norwegian study on the effects of late night screen time on teenagers' sleep. The researchers, who deemed sleep deprivation "a major public health concern,” looked at the