Public health practice involves a multidisciplinary approach to promoting health, preventing disease, and prolonging life within communities. It is based on evidence and aims to address health disparities by creating policies and strategies that encourage healthier environments, behaviors, and systems. Principles like equity, access to care, and sustainability guide public health efforts, ensuring that health interventions are inclusive and address the needs of all population groups. Public health policies are designed to mitigate risks, promote preventive care, and manage resources effectively. Strategies may include education campaigns, improving healthcare infrastructure, implementing regulations, and fostering collaboration between governments, organizations, and communities. Ultimately, the goal is to enhance the overall well-being of populations through coordinated, proactive measures.