Digital addiction describes a behavioral condition in which a person's use of smartphones, social media, video games, or online platforms becomes compulsive enough to disrupt sleep, work, relationships, or mental health. Unlike ordinary heavy use, the clinical marker is impaired control: continued use despite negative consequences, withdrawal symptoms when access is removed, and repeated failed attempts to cut back. The World Health Organization formalized one subset — Gaming Disorder — in the ICD-11, which took effect globally in January 2022, marking the first time a digital behavior was classified as a recognized health condition at that level of international consensus.

The concept remains contested at its edges. Researchers debate whether "addiction" is the right frame for what may be, in many cases, a symptom of underlying anxiety, depression, or social isolation rather than a primary disorder. A 2023 meta-analysis published in PLOS ONE synthesizing data from 53 countries estimated the global prevalence of Internet Use Disorder at approximately 7% of the population, with notably higher rates among adolescents — some national samples showing 15–20% in that age group. The OECD's 2023 Health at a Glance report flagged excessive screen time as an emerging public health concern, noting that among 15-year-olds across member countries, roughly 40% reported feeling uncomfortable when not connected to their devices. These numbers vary significantly by methodology: studies using stricter clinical thresholds put problematic use closer to 3–4% of adults globally.

Country-level responses illustrate the policy stakes. China introduced a regulation in 2021 limiting minors to three hours of online gaming per week (down from 90 minutes per day on weekdays), enforced through real-name registration and time-lock systems. South Korea's Shutdown Law — which banned under-16s from gaming platforms between midnight and 6 a.m. — ran from 2011 to 2021 before being repealed after mixed evidence on effectiveness. In the United States, average daily social media use among adults stood at 2 hours 23 minutes in 2024 (DataReportal, 2024), while the American Psychological Association's 2023 Stress in America survey found that 35% of adults reported checking their phone "constantly." These are usage figures, not addiction rates, but they mark the behavioral baseline from which disorder-level use emerges.

The civilizational stress angle is indirect but real. Digital addiction intersects with multiple pressure points tracked across national indexes: it correlates with declining adolescent mental health scores, falling sleep quality, reduced in-person social cohesion, and diminished civic participation — all of which carry downstream consequences for productivity, institutional trust, and democratic engagement. It also concentrates unevenly: lower-income users tend to spend more time on algorithmically optimized, high-stimulus platforms precisely because premium alternatives (paid apps, offline recreation, stable housing) are less accessible. That distribution means digital addiction is not merely a lifestyle issue but a structural one, amplifying inequality in cognitive bandwidth and self-regulation capacity at the population level.

Sources: World Health Organization, ICD-11 for Mortality and Morbidity Statistics (2022); Cheng & Li, "Internet Addiction Prevalence and Quality of (Real) Life," PLOS ONE (2023 updated meta-analysis); OECD, Health at a Glance 2023; DataReportal, Global Digital Overview (2024); American Psychological Association, Stress in America (2023).