By Rhitu Chatterjee | NPR
Preteens using increasing amounts of social media perform poorer in reading, vocabulary and memory tests in early adolescence compared with those who use no or little social media.
That’s according to a new study that suggests a link between social media use and poorer cognition in teens. The findings are published in JAMA.
“This is a really exciting study,” says psychologist Mitch Prinstein at the University of North Carolina at Chapel Hill, who wasn’t involved in the new research.
“It confirms a lot of what we have been hearing about from schools all across the country, which is that kids are just having a really hard time focusing on being able to learn as well as they used to, because of the ways in which social media has changed their ability to process information, perhaps.”
While most previous research has focused on the impact of social media use on kids’ mental health, “it’s critical to understand how social media use during school hours specifically affects learning, especially as so many schools are considering phone bans right now,” says study author and pediatrician Jason Nagata of the University of California, San Francisco.
A look at reading and memory
To understand that, Nagata and his colleagues used data from one of the largest ongoing studies on adolescents, called the Adolescent Brain Cognitive Development (ABCD) Study. Scientists have been following thousands of preteens as they go through adolescence to understand the development of their brains.
The ongoing study has been surveying kids about their social media use every year and giving them a range of tests for learning and memory every other year. Nagata and his colleagues used data on over 6,000 children, ages 9 to 10, as scientists followed them through early adolescence.
They classified the kids into three groups based on their evolving patterns of social media use. The biggest group, consisting of about 58% of the kids, used little or no social media over the next few years. The second-largest group, about 37% of kids, started out with low-level use of social media, but by the time they turned 13, they were spending about an hour each day on social media.
The remaining 6% of kids — called the “high increasing social media group” — were spending about three or more hours a day by age 13.
Read more here.







