Public Health refers to the science and practice of protecting and improving the health of populations through organized efforts and informed choices of society, organizations, communities, and individuals. It involves the prevention of disease, prolonging life, and the promotion of health through the collective efforts of society. Public health encompasses a range of activities, including health education, surveillance of health trends, disease prevention programs, health policy, and the promotion of healthy behaviors. Its goal is to improve health outcomes and quality of life for all individuals, especially vulnerable populations, by addressing health disparities and implementing health interventions at community, national, and global levels. Public health also focuses on controlling epidemics, ensuring access to necessary healthcare, and conducting research to enhance the understanding of health issues impacting populations. Ultimately, it aims to create environments conducive to health and wellness, ensuring that populations can lead healthy lives.