Cognitive and neurological effects of smartphone use

Research and medical observations have increasingly linked continuous smartphone use to various neurological and cognitive issues.

A study from the University of Heidelberg using fMRI technology found that heavy smartphone users exhibit heightened brain activity in the right middle cingulate gyrus and right superior frontal lobe when experiencing social exclusion. This suggests that for these individuals, the sensation of “social pain” is triggered more rapidly and intensely, often correlating with Fear of Missing Out (FOMO).

Complementary observations describe a phenomenon colloquially termed ‘smartphone brain’. This condition involves symptoms such as fragmented attention, sleep disturbances, and headaches. Experts note that the frequency of interruptions and constant task-switching—such as checking notifications during work—may impact cognitive control and the brain networks responsible for maintaining long-term concentration.

Recent findings from Semmelweis University suggest that the manner of use may be as significant as total screen time. A study published in Acta Psychologica involving individuals aged 18 to 35 found that heavy content consumers—those spending four to five hours daily on online content—performed worse on memory and attention tests than expected. This group also reported a constant need for stimulation and poorer sleep quality.

Beyond cognitive impairments like reduced concentration and memory, excessive scrolling and prolonged use are associated with physical consequences, including poor posture and issues affecting balance and reaction time. The rapid flow of information from social media feeds and short videos may overload attention and contribute to mental fatigue.