Evidence is mounting that there is a link between social media and depression. In several studies, teenage and young adult users who spend the most time on Instagram, Facebook and other platforms were shown to have a substantially (from 13 to 66 percent) higher rate of reported depression than those who spent the least time. One reason the correlation seems more than coincidental is that an increase in depression occurred in tandem with the rise in smartphone use. (Child Mind Institute)

A study published in the Journal of the American Medical Association, tracked 2,500 teens over two years and monitored their usage and symptoms. The more teens use social-media networking sites, video games and streaming services, the higher their risk of developing symptoms of attention-deficit hyperactivity disorder, or ADHD, a new study found.  (Hernandez, Wall Street Journal, July 2018)

According to child psychologists Gallagher, Spira, and Rosenblatt, creators of the Organizational Skills Training (OST) program at New York University's Langone Medical Center, 15 to 20 percent of children struggle with deficits in organization, time management, and planning behaviors (School Library Journal, March 2018)

According to a 2015 report by the Pew Research Center, 92% of American teenagers (ages 13-17) go online daily, including 24% who say they are on their devices "almost constantly." Seventy-one percent use Facebook, half are on Instagram, and 41% are Snapchat users. And nearly three-quarters of teens use more than one social-networking site. A typical teen, according to Pew, has 145 Facebook friends and 150 Instagram followers. (Rosen, Wall Street Journal, August 2016)