This study examined the association between daily health practices and perceived self-efficacy among Senior High School students. The research utilized a quantitative descriptive-correlational design to assess whether students' confidence in their abilities corresponded with their health behaviors. Data were obtained from 269 Senior High School students from the District of Hinoba-an, Division of Negros Occidental during the 2024–2025 academic year. Adapted and validated versions of the Healthy Lifestyle Screening (HLS) tool and the New General Self-Efficacy (NGSE) scale ensured measurement validity and reliability. Results indicated that students generally achieved a "Good" standard of overall health. Notably, there was a marked difference between high scores in psychosocial domains, such as "Life Appreciation," and lower participation in "Physical Activity." Despite limited physical activity, the cohort reported a "High" level of perceived self-efficacy, demonstrating strong internal confidence in managing academic and personal demands. Spearman’s Rank Correlation analysis identified a significant, moderate positive relationship between health practices and self-efficacy (ρ = 0.542, p < .001), suggesting that increased selfefficacy is associated with greater engagement in health-promoting behaviors. Furthermore, health practices did not vary by sex or monthly family income, although sex significantly influenced self-efficacy. These findings highlight the importance of comprehensive school-based interventions that combine structured physical activity with psychological empowerment to promote holistic, lifelong healthy behaviors among adolescents.