Screen time has more than doubled since 1997 for kids younger than 2, but that growth is not where you’d expect. Despite the rise of smartphones and tablets, time spent in front of the TV is actually the top driver of the increase, a study in the journal JAMA Pediatrics said. Kids under 2 spent 1.32 hours per day in front of a screen in 1997. That jumped to 3.05 hours daily in 2014. Excessive screen time early in life has been associated with cognitive, language and social and emotional delays. It’s also been linked to obesity and sleeping problems. The American Academy of Pediatrics recommends no screen time for children younger than 18 months old. from 5 Thingd, CNN