Problematic smartphone use linked to poor self-control, attention and sleep in students

Researchers at Semmelweis University examined smartphone use, psychological factors, and cognitive and physical health in students aged 18–35. The observational study, published in Acta Psychologica, used online questionnaires about smartphone activities and problematic-use behaviors, alongside cognitive testing and physical measurements. The supplied account does not specify the sample size or detailed assessment methods.

Researchers identified three usage patterns: primarily social communication, lighter mixed use, and heavy content consumption. Heavy content consumers accounted for approximately one third of participants and used smartphones for four to five hours or more daily, largely to consume content rather than communicate. This group performed worse on memory and attention tasks than expected for their age and reported poorer sleep and greater difficulty resisting impulses. Poor self-control and fear of missing out were closely associated with problematic use; neuroticism alone did not explain vulnerability.

The account also discusses possible posture-related effects on balance and reaction time, but provides no quantitative physical outcome results. For clinicians, the findings suggest that the nature of smartphone activity may be relevant alongside duration when discussing sleep and concentration concerns. However, the associations do not establish causation, and the student population limits generalizability. This university-provided report lacks effect estimates, adjustment details and evidence that the suggested behavioral strategies improve outcomes.