Seven percent of adolescents met the threshold for pathological use—the highest of any age group.
Across Japan, a nationwide survey has found that one in fourteen adolescents between the ages of ten and nineteen shows signs of pathological social media use — a rate higher than any other age group measured, and one that declines steadily as people grow older. The finding, drawn from thousands of respondents across hundreds of locations, suggests that the years of adolescence are uniquely vulnerable to the pull of digital platforms. As governments in Australia and Indonesia have already moved to restrict access for minors, Japan now faces the same reckoning: whether the tools its young people have grown up with are shaping them in ways that demand a collective response.
- One in seven teens identified as problematic users spends six or more hours on social media every weekday — time carved from sleep, study, and human connection.
- On weekends, that figure surges to 62 percent, revealing a pattern of immersion that intensifies precisely when structure falls away.
- The addiction rate among teens is nearly six times higher than among adults in their forties, exposing adolescence as the period of greatest vulnerability.
- Researchers warn the consequences are not hypothetical — documented links between heavy use and mental health deterioration are already accumulating in the literature.
- Japan's government agencies are now in active discussion about regulatory intervention, with Australia and Indonesia's under-16 bans serving as possible templates.
- What Japan chooses in the coming months may set a precedent that ripples far beyond its own borders.
Researchers at the National Hospital Organization Kurihama Medical and Addiction Center surveyed 4,650 people drawn from across Japan — from Hokkaido to Okinawa — asking nine diagnostic questions about their relationship with social media. Had they tried and failed to cut back? Had they concealed from loved ones how much time they spent online? The answers revealed something that researchers found difficult to dismiss.
Seven percent of adolescents aged 10 to 19 met the threshold for pathological social media use, answering yes to at least five of the nine questions. No other age group came close. The rate fell to 4.7 percent among people in their twenties, to 1.1 percent in their thirties, and below one percent by middle age. The message embedded in those numbers was plain: social media's hold is strongest when people are youngest.
Among teenagers flagged as problematic users, roughly 30 percent reported spending six or more hours on social media on weekdays. On weekends, that proportion climbed to 62 percent — sessions long enough to crowd out sleep, schoolwork, and face-to-face life. For young people already navigating the ordinary difficulties of growing up, researchers raised serious questions about what such immersion might be doing to still-developing minds.
The concern has begun to move governments. Australia and Indonesia have both introduced restrictions on social media access for anyone under 16, framing the platforms as a public health matter. Japan's Ministry of Internal Affairs and Communications and its Children and Families Agency are now in discussion about how to respond — through regulation, education, or both. With millions of teenagers potentially affected, the Kurihama survey has made one thing clear: social media can no longer be treated as a neutral presence in young people's lives.
In January and February of last year, researchers at the National Hospital Organization Kurihama Medical and Addiction Center conducted a nationwide survey across Japan that would reveal something troubling about the country's youngest digital natives. They asked 4,650 people—drawn randomly from 9,000 selected across 400 locations from Hokkaido to Okinawa—nine straightforward questions about their relationship with social media. Had they tried and failed to cut back? Had they lied to friends or family about how much time they spent scrolling? The answers painted a portrait of a generation struggling to disengage.
Seven percent of Japanese adolescents between 10 and 19 years old met the threshold for what researchers call pathological social media use—meaning they answered affirmatively to at least five of those nine diagnostic questions. The figure was striking not because it was enormous, but because it was the highest of any age group measured. Among people in their twenties, the rate dropped to 4.7 percent. By the thirties, it had fallen to 1.1 percent. In the forties and fifties, it hovered below one percent. The pattern was unmistakable: adolescence is when social media's grip tightens most.
What made the finding more alarming was what the survey revealed about how these young people actually spent their time. Among those identified as problematic users, roughly three in ten said they spent at least six hours on social media during weekdays—hours that might otherwise go to homework, sleep, or face-to-face interaction. On weekends, the proportion nearly doubled: 62 percent reported six-hour-or-longer sessions. For teenagers already navigating the ordinary turbulence of adolescence, this level of immersion raised serious questions about what it might be doing to their developing minds.
The concern is not abstract. Research has begun to document links between heavy social media use and both mental health problems and behavioral issues in young people. The phenomenon has not gone unnoticed by governments elsewhere. Australia and Indonesia have both moved toward banning social media access for anyone under 16, treating the platforms as a public health threat requiring regulatory intervention. Japan's own Ministry of Internal Affairs and Communications and the Children and Families Agency have begun discussing how the country should respond—whether through restrictions, education, or some combination of approaches.
The Kurihama center's survey, based on diagnostic methods developed and tested internationally, suggests that Japan faces a genuine problem. Seven percent of an entire age cohort—millions of teenagers—showing signs of addiction is not a marginal issue. It is a signal that the digital landscape these young people inhabit may be reshaping their behavior in ways they cannot easily control, and that policymakers can no longer treat social media as a neutral tool. What Japan decides to do about it in the coming months will likely influence how other countries approach the same question.
Notable Quotes
Those who answered affirmatively to at least five of nine diagnostic questions were classified as potentially addicted to social media— National Hospital Organization Kurihama Medical and Addiction Center
The Hearth Conversation Another angle on the story
Why does the addiction rate drop so sharply after adolescence? Is it just that older people use social media less, or something else?
It's likely both. Teenagers' brains are still developing—the parts that handle impulse control and long-term thinking are still being wired. Social media is designed to be addictive, and adolescents are neurologically more vulnerable to that design. But also, adults have more competing demands on their time: jobs, families, mortgages. Teenagers have fewer anchors.
The survey asked about lying to family and friends about screen time. That's a specific kind of shame or secrecy. What does that tell us?
It suggests these young people know something is wrong. They're not just passively scrolling—they're aware they're spending too much time, they're hiding it, they're trying to quit and failing. That's the definition of addiction. It's not just a habit; it's a loss of control they're aware of.
Six hours on a weekday for a teenager—that's almost their entire waking life outside school. What are they actually doing for those six hours?
The survey doesn't say. Could be TikTok, Instagram, YouTube, gaming platforms with social elements. Probably a mix. But the point is the same: it's time not spent sleeping, studying, or with people in the room.
Australia and Indonesia banned under-16s from social media. Is that even enforceable?
That's the real question. You'd need age verification at scale, which raises privacy issues. But the fact that countries are trying suggests they see the problem as serious enough to attempt something difficult.
What happens to these seven percent of teenagers if nothing changes?
We don't know yet. The research linking social media to mental health problems is still emerging. But we know addiction patterns tend to persist. These teenagers are forming habits now that could shape their relationship with technology for life.