Public health awareness has become increasingly important in promoting healthy living practices among young adults, particularly in response to the growing prevalence of lifestyle-related diseases and mental health concerns. Young adulthood represents a critical developmental stage during which lifelong health behaviors are established. Adequate knowledge regarding disease prevention, nutrition, physical activity, personal hygiene, mental well-being, and preventive healthcare contributes significantly to improving overall health outcomes. The present study explores the relationship between public health awareness and healthy living practices among young adults by examining their understanding of preventive health measures and the extent to which awareness influences everyday health behaviors. A quantitative descriptive research design was adopted using structured questionnaires administered to university students and young professionals. The findings indicate that individuals possessing higher levels of public health awareness demonstrate healthier dietary habits, increased physical activity, improved hygiene practices, greater utilization of preventive healthcare services, and stronger mental health management behaviors. Furthermore, awareness regarding communicable and non-communicable diseases encourages responsible health decision-making and supports sustainable lifestyle choices. The study emphasizes the necessity of strengthening community-based health education initiatives, digital health literacy programs, and institutional health promotion strategies to enhance healthy living practices among young adults. The results contribute to the growing body of public health literature by highlighting awareness as a fundamental determinant of long-term health promotion and disease prevention.