Preventive Medicine is a specialized field within healthcare that focuses on keeping individuals healthy and preventing diseases from occurring or progressing. It employs a range of strategies such as health promotion, vaccinations, early disease screenings, lifestyle adjustments, environmental health measures, and health education to reduce the risk of illness, injury, and disability. 

By identifying and addressing risk factors, preventive medicine aims to improve overall well-being, extend lifespan, and contribute to better health outcomes.