A new study from the University of Cincinnati and Northwestern University, published in the journal npj Mental Health Research, found that daily social media use exceeding 2.5 hours is associated with a higher risk of depression. Researchers analyzed 183,300 anonymized surveys from adults aged 18 to 70 over a period from 2014 to 2025.
Using a machine learning model that evaluated more than 1,300 lifestyle and health indicators, the team discovered that the most pronounced link between screen time and self-reported depression symptoms emerged for those spending at least 150 minutes (2.5 hours) daily on social platforms. Interestingly, social media use turned out to be a stronger predictor of depression than other forms of screen time, such as watching TV, general internet browsing, or playing video games.
The authors emphasize that while the study reveals a statistical correlation, it does not prove causation. It’s possible that individuals already experiencing depressive symptoms are more likely to spend excessive time online. The researchers suggest that people should consider more conscious digital habits — such as disabling notifications, using built-in screen time timers, or logging out after use — rather than completely abandoning social media.
About the Author
