Exercise may help young people rein in problematic internet use, and moderate intensity looks like the sweet spot. A network meta-analysis in Addiction Biology pooled trials on exercise and internet addiction in adolescents and young adults, and found that getting active was linked to less compulsive internet use, and to better mood, with moderate-intensity workouts standing out.
Why this matters. Excessive, compulsive internet use is a growing concern among young people, often tangled up with anxiety, low mood, and inactivity. Exercise is a low-cost, widely available intervention with known mental-health benefits, but it has been unclear whether intensity matters, that is, whether a gentle walk, a moderate jog, or an all-out session works best. A network meta-analysis is well suited to this question because it can rank several options against one another.
What the study did. The researchers systematically searched eight databases for randomized controlled trials and combined 22 studies covering 1,438 participants. They compared three exercise intensities, light, moderate, and vigorous, against control conditions, and assessed effects on internet addiction as well as related psychological symptoms including depression, anxiety, and other negative moods.
What they found on internet use. Exercise at every intensity was associated with meaningful reductions in internet addiction. In the network analysis, light-intensity exercise (standardized mean difference -2.61), moderate-intensity exercise (-2.74), and vigorous exercise (-2.55) all showed large associations with lower internet addiction scores. In short, moving at any intensity appeared to help pull young people away from compulsive screen use.
Where moderate intensity pulled ahead. For mood symptoms, the picture was more selective. Only moderate-intensity exercise was significantly associated with reductions in both depression (SMD -1.19) and anxiety (SMD -1.90). Light and vigorous exercise did not show significant effects on those two symptoms. Light and moderate intensity were both linked to improvements in other negative moods.
The overall ranking. When the analysis ranked the options by likelihood of being the most effective, moderate-intensity exercise came out on top for reducing internet addiction, depression, and anxiety, while light exercise ranked highest for other negative moods. That points to moderate activity, think a brisk walk or easy jog, as a practical, well-rounded target.
How to read this, with caveats. The authors are candid that the strength of the evidence is limited by small sample sizes and the modest quality of some included studies, and they call for larger, more standardized trials. The very large effect sizes should therefore be treated as encouraging signals rather than precise estimates. As an association drawn from varied trials, this also cannot prove exercise alone cures problematic internet use.
Practical takeaway. For families and young people, the message is hopeful and simple: regular physical activity, especially moderate-intensity movement done consistently, may help loosen the grip of compulsive internet use while also supporting mood. It fits alongside, not instead of, other strategies such as healthy screen habits and, where needed, professional support.
Bottom line. Across 22 trials, exercise of all intensities was linked to less internet addiction in young people, with moderate-intensity activity ranking best overall and uniquely tied to lower depression and anxiety, making it a promising, accessible tool, though the limited evidence quality means larger trials are still needed.