Screen time spent gaming or on social media does not cause mental health problems in teenagers, according to a large-scale study.
With ministers in the UK considering whether to follow Australia’s example by banning social media use for under-16s, the findings challenge concerns that long periods spent gaming or scrolling TikTok or Instagram are driving an increase in teenagers’ depression, anxiety and other mental health conditions.
Researchers at the University of Manchester followed 25,000 11- to 14-year-olds over three school years, tracking their self-reported social media habits, gaming frequency and emotional difficulties to find out whether technology use genuinely predicted later mental health difficulties.
Participants were asked how much time on a normal weekday in term time they spent on TikTok, Instagram, Snapchat and other social media, or gaming. They were also asked questions about their feelings, mood and wider mental health.
The study found no evidence for boys or girls that heavier social media use or more frequent gaming increased teenagers’ symptoms of anxiety or depression over the following year.
Increases in girls’ and boys’ social media use from year 8 to year 9 and from year 9 to year 10 had zero detrimental impact on their mental health the following year, the authors found. More time spent gaming also had a zero negative effect on pupils’ mental health.
“We know families are worried, but our results do not support the idea that simply spending time on social media or gaming leads to mental health problems – the story is far more complex than that,” said the lead author Dr Qiqi Cheng.
The research, published in the Journal of Public Health, also examined whether how pupils use social media makes a difference, with participants asked how much time spent chatting with others, posting stories, pictures and videos, browsing feeds, profiles or scrolling through photos and stories. The scientists found that actively chatting on social media or passive scrolling feeds did not appear to drive mental health difficulties.
The authors stressed that the findings did not mean online experiences were harmless. Hurtful messages, online pressures and extreme content could have detrimental effects on wellbeing, but focusing on screen time alone was not helpful, they said.
“Our findings tell us that young people’s choices around social media and gaming may be shaped by how they’re feeling but not necessarily the other way around,” said Prof Neil Humphrey, a co-author. “Rather than blaming technology itself, we need to pay attention to what young people are doing online, who they’re connecting with and how supported they feel in their daily lives.”
