Objective:to explore how different forms of digital use, including social media scrolling, generalized internet immersion, and habitual smartphone engagement, intersect with dietary choices, movement patterns, sleep routines, and broader mental health outcomes among varied demographic groups.


Methods:


The review synthesizes findings from peer-reviewed studies that focus on social media or internet addiction alongside research on physical activity, eating behaviors, and sleep quality, that shows how these behaviors converge.


Results:


A growing body of evidence points to excessive digital involvement as a notable contributor to disordered eating behaviors, nighttime eating episodes, orthorexic traits, and a heightened intake of sugar-sweetened or ultra-processed foods that shows the subtle ways digital patterns seep into daily habits. Physical activity frequently declines when social media addiction intensifies, although structured interventions and fitness-focused applications appear capable of buffering some negative outcomes. Sleep quality tends to erode under heavy screen exposure, social media fatigue, and gaming addiction, and this decline becomes more pronounced when poor impulse regulation or late-evening device use is present. Adolescents show striking vulnerability given their developmental stage and social pressures, though adults also encounter addiction-like symptoms including compulsive engagement and nomophobia. Cultural norms and socioeconomic conditions further shape how these factors interact.


Conclusion:


Digital engagement carries substantial influence over lifestyle behaviors and psychological well-being, which indicates urgent need for interventions that promote digital literacy, regular movement, balanced nutrition, and supportive sleep habits. These strategies must remain culturally adaptable in order to prevent harmful patterns of digital dependence and sustain holistic health across age groups.