Over the course of eleven years, adults in the United States consistently linked heavier social media use to self-reported depression (SRD), with a statistically significant shift occurring at 150 minutes per day.
Researchers examined 11 annual surveys conducted between 2014 and 2024, covering about 183,000 adults aged 18 to 70. Unlike studies focused on teenagers or total screen time, the paper published in Mental Health Research looked specifically at social media use.
In the researchers’ model, social media use began to push predictions of depression at around 150 minutes a day. The pattern appeared in every year studied, despite changes in platforms and online habits.
«These findings identify a stable, repeated association between higher social media use and SRD,» researchers stated.
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A warning sign, not a daily limit
The study had each year’s US population take a snapshot rather than following the same individuals over time, and both social media use and depression were self-reported by respondents.
That means researchers can’t tell which happened first. Individuals with depression might spend more time online, and heavy use might impact their wellbeing, or other life aspects might influence both. The authors said the number could not be considered a meaningful clinical threshold until further long-term and experimental research was conducted.
The real news is the consistency of the association over 11 years and across a wide range of adult ages. But time alone can’t tell us whether we spent those hours chatting with friends, seeking support or passively consuming disturbing content.
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For readers, 150 minutes is best imagined as an invitation to examine a habit, not a diagnosis of a problem. The questions to ask yourself are whether it’s difficult to stop scrolling and whether it’s cutting into your sleep, work or time with other people.
