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Brain Fog: The Impact of Excessive Smart Device Use on Subjective Cognitive Clarity Among Young Adults | ||
| Al-Zahraa Journal for Health and Medical Sciences | ||
| Article 2, Volume 3, Issue 3, September 2025, Pages 22-36 PDF (667.33 K) | ||
| Document Type: Research Article | ||
| Authors | ||
| Mohammed J looti* ; Marwa abd-alzim | ||
| University of Kerbala | ||
| Abstract | ||
| This study investigated the relationship between excessive smart device use (smartphones, tablets) and subjective cognitive clarity, commonly referred to as "brain fog," among university students aged 18-30. Using a cross-sectional survey design (N=450), the smart device usage patterns, problematic use (modified Mobile Phone Problem Use Scale, MPPUS), brain fog (Brain Fog Scale, BFS), sleep quality (Pittsburgh Sleep Quality Index, PSQI), and perceived stress (Perceived Stress Scale, PSS) was assessed. Results indicated a significant positive correlation between excessive smart device use and BFS scores, signifying greater brain fog. Hierarchical regression analyses indicated that smart device use was a significant predictor of higher BFS scores. this held even when controlling for sleep quality. stress levels and demographic variables. Mediation analyses showed that the connection between total daily smart device use and brain fog was partially explained by both sleep quality and problematic smart device use. To be specific problematic smart device use fully mediated the effect of total use on brain fog whereas sleep quality and stress demonstrated partial mediation. These findings suggest an intricate network of influences among smart device use sleep psychological well-being and subjective cognitive function. The results bring into focus the need for promoting responsible technology use and digital wellness strategies particularly in young adult populations. | ||
| Keywords | ||
| Brain Fog; Cognitive Clarity; Smart Device Use; Stress; Problematic Use | ||
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