This document discusses the history and principles of research ethics. It outlines key events in medical research scandals that led to the development of formal research ethics guidelines. The core principles of research ethics are respect for persons, beneficence, and justice. Research ethics aims to balance the priorities of science/knowledge, care, and health while protecting researchers, physicians, patients, and communities. Guidelines establish standards for informed consent, equitable participant selection, and special protections for vulnerable groups. Oversight committees and community representatives review research proposals and monitor studies to ensure ethical standards are upheld.