A Study on Relationship between Lifestyle Factors and Health Outcomes among Students

Abstract

This study examines how major lifestyle factors such as diet, sleep, physical activity, screen time, and substance use affect student’s physical and mental health, including BMI, stress, anxiety, depression, and academic performance. Using a cross-sectional survey of 100 college students, statistical analyses such as correlation, chi-square, and regression were performed. Results showed that good diet and regular physical activity were associated with healthier BMI and lower depression and anxiety. Screen time emerged as the strongest predictor of poor mental health, significantly increasing both depression and anxiety levels. Sleep duration influenced BMI but had no significant effect on psychological outcomes. Chi-square tests revealed that alcohol use and smoking were significantly associated with academic performance, with non-users performing better academically. Regression analysis confirmed screen time, physical activity, and sleep hours as key predictors of depression. Overall, the study highlights that healthier lifestyle behaviors are essential for improving student’s physical well-being, mental health, and academic outcomes.