Offline leisure engagement and digital competency show opposite associations with smartphone overdependence: a survey-weighted analysis of 20,966 Korean adults

In the modern world, the smartphone has become the central hub of daily life, mediating everything from banking and health management to social connection and entertainment. Yet, as these devices integrate deeper into our routines, a growing public health concern has emerged: smartphone overdependence. This is not merely about spending a lot of time on a screen; it is a state where a person's ability to control their usage erodes, leading to impaired functioning in their daily life, constant preoccupation with the device, and negative consequences for their health and relationships. Researchers have long suspected that certain habits and life circumstances drive this behavior. Some theories suggest that people turn to their phones to fill a void when their real-world needs for connection, competence, or relaxation go unmet. Others propose that the specific types of content we consume—like games or social media—can trigger compulsive loops. The big question for scientists has been how these different factors interact. Does being good with technology protect you from overuse, or does it make you more vulnerable? Does having a busy social life help, or is it the type of leisure that matters? Answering these questions requires looking at a vast array of life details simultaneously, rather than in isolation.

To untangle this complex web, a researcher at Konkuk University analyzed data from a massive national survey conducted in South Korea in 2024. The study focused on nearly 21,000 adults, ranging from young adults in their late teens to seniors nearing seventy. Because the survey was designed to represent the entire population of the country, the findings offer a clear picture of the adult experience rather than just students or specific groups. The researcher used a method that allowed them to test five different areas of life one after another: basic demographics like age and income, how people use their phones for specific tasks, what they do for fun when they are not on their phones, how skilled they are with digital tools, and how satisfied they feel with their relationships, work, and life in general. This step-by-step approach helped reveal which factors truly matter when all other variables are taken into account.

The results painted a clear and somewhat surprising picture of what drives smartphone overdependence. The most consistent finding was that age is a powerful predictor. Younger adults were significantly more likely to show signs of overdependence than older adults, a pattern that aligns with the idea that those who grew up alongside mobile technology integrate it more deeply into their sense of self and daily habits. Education also played a role, but in an unexpected direction: adults with higher levels of education were more likely to be overdependent. This suggests that the demands of professional and intellectual life, which often require heavy smartphone use, may increase integration rather than protect against it. Conversely, higher household income was linked to lower overdependence, likely because wealthier individuals have access to a wider range of offline leisure options that compete with the pull of the screen.

Perhaps the most striking discovery concerned how people spend their free time. The study found that engaging in any form of offline leisure was strongly linked to lower smartphone overdependence. This protection held true across the board, whether the activity was sports and exercise, attending cultural events, traveling, socializing with others, or simply resting and relaxing. The more an adult participated in these real-world activities, the less they struggled with overdependence. This finding supports the idea that when people have fulfilling ways to spend their time outside of their devices, they are less likely to use their phones as a substitute for missing experiences. Interestingly, the study found that simply listing "smartphone use" as a primary leisure activity did not, on its own, predict overdependence once the specific content being consumed and the level of worry about that content were accounted for. This suggests that the problem lies less in the act of using the phone for fun and more in the specific, often fragmented, ways people engage with it.

Another counterintuitive finding challenged a common assumption about digital skills. Many people believe that being highly competent with technology acts as a shield, helping users manage their time and avoid getting lost in the digital world. The data showed the opposite: adults who rated themselves as more digitally competent were actually more likely to be overdependent. This suggests that being good with technology does not automatically teach a person how to regulate their use. Instead, high skill levels may simply open the door to a wider array of apps and functions, increasing the opportunities for habitual checking and reinforcement without necessarily providing the self-control needed to stop.

The study also looked at what people worry about regarding their phone use. Those who expressed concern about specific high-intensity content, such as adult material, investment apps, or gaming, showed higher levels of overdependence. This aligns with the idea that these types of content are designed to be highly engaging and can trigger compulsive behaviors. However, a curious exception emerged with video streaming. People who worried about video streaming actually had lower overdependence scores. This may be because watching a show on a phone is often a more passive, single-purpose activity, whereas overdependence is often driven by the fragmented, multi-tasking nature of checking notifications, scrolling feeds, and jumping between different apps. Finally, the study confirmed that how satisfied people feel with their lives matters. Adults who reported higher satisfaction with their relationships, work, leisure, and life in general were less likely to be overdependent, reinforcing the view that smartphone overuse often fills a gap when other areas of life feel unsatisfying.

While the study provides a robust map of these associations, it is important to remember that it captures a snapshot in time and cannot prove that one thing causes another. For instance, while offline leisure appears to protect against overdependence, it is also possible that overdependence erodes a person's ability to enjoy offline activities. Similarly, the link between digital skill and overdependence suggests that teaching people to use technology better is not enough; it must be paired with training in self-regulation to be truly effective. The research highlights that for adults, the path to a healthier relationship with their phones likely involves cultivating a rich, diverse life of offline engagement and ensuring that their digital skills are matched with the ability to manage their own attention.