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Abstract

Health is an important factor in determining academic performance. This study aims to analyze the relationships between lifestyle, nutritional status, eating habits, and academic achievement among high school students. The study used a cross-sectional design with a sample of 131 students from four schools in Malang City, Malang Regency, Batu City, and Pasuruan Regency. Data were collected through interviews, anthropometric measurements, and the SQ-FFQ and IPAQ questionnaires. Analysis was performed using the Chi-Square test. The results showed that most respondents slept less than 8 hours (58.8%), used smartphones for ≥ 8 hours per day (50.4%), had moderate physical activity (52.7%), normal nutritional status (67.9%), and consumed a less diverse range of vegetables and fruits (>50%). Bivariate tests showed a significant relationship between excessive smartphone use and academic performance (p = 0.029), while sleep duration (p = 0.452), physical activity (p = 0.630), nutritional status (p = 0.051), vegetable consumption (p = 0.097), and fruit consumption (p = 0.258) were not significantly associated. These findings emphasize the importance of managing smartphone use in supporting academic achievement.

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