Related Experiment Video
Updated: Jun 14, 2025

An Application for Pairing with Wearable Devices to Monitor Personal Health Status
Published on: February 3, 2022
Changes in Smartphone Usage among Adolescents and Associated Subjective Health Concerns: A Secondary Analysis of the
Geun Woo Lee1, Jongwon Moon2, Donghun Lee1
1Department of Ophthalmology, Catholic University of Daegu School of Medicine, Daegu, Republic of Korea.
Background:
We evaluated changes in the smartphone use rate and time among Korean adolescents and their awareness of associated health problems.
Methods:
This study was a secondary analysis of the Korea Youth Risk Behavior Survey (2020-2023) conducted by the Korean Disease Control and Prevention Agency. The total number of enrolled adolescents aged 12-18 years was 214,526.
Results:
The weekly smartphone usage rate increased from 96.4% to 97.1% (p = 0.03), with no significant changes observed in weekend usage. The average smartphone use time was 4.7 h on weekdays (p = 0.17) and 6.6 h on weekends (p = 0.37). Middle school adolescents had a higher weekday use rate than high school adolescents, but the average smartphone use time was significantly less. By 2023, the proportion of adolescents with overdependence was 28% (n = 14,672). Additionally, 11.8% (n = 6255) responded that they had experienced health problems due to smartphone use.
Conclusions:
The longer they used their smartphones for on the weekends, the more likely they considered their health to be worse. In conclusion, our youth population needs to be educated on the proper use of smartphones.
Related Concept Videos
Bullying
Self-Evaluation: Self-Enhancement and Self-Verification
Influence of Parents and Peers on Identity
Parental Influence on Identity Development
Parents serve as primary guides and managers in an adolescent's life, offering support instrumental in decision-making and personal growth....
Stress Prevention and Stress Management Techniques IV
Ethnic Identity within a Larger Culture
Stress and Mental Health
Individuals with depression often experience challenges in both their personal and professional...

