Backgrounfd: With the widespread use of the internet, smartphones have become essential communication tools. However, their excessive use has raised concerns about posture-related issues, particularly the scapula position. The present study explores the relationship between smartphone addiction, BMI and Upper Cross Syndrome (UCS). Previous research (Toscano et al., 2018) has established a positive correlation between smartphone addiction and a higher BMI, suggesting that individuals addicted to smartphones may be at greater risk for weight-related issues.

Materials and Methods: This study involved 100 college students aged 18–25. The Smartphone Addiction Scale-Short Version (SAS-SV) was used to assess smartphone addiction. A Spearman’s correlation test was conducted to evaluate the relationship between smartphone addiction, scapular index, BMI, and UCS prevalence among students.

Result: The findings revealed that 65% of participants had smartphone addiction, while 48% exhibited UCS. A significant correlation was found between smartphone addiction and UCS, indicating that prolonged smartphone use and poor posture contribute to the syndrome. However, no significant correlation was observed between smartphone addiction and BMI.