The document discusses the history and importance of ethics in research. It describes some past unethical research studies involving human experimentation without consent, such as the Tuskegee Syphilis Study. This led to the development of ethical guidelines like the Nuremberg Code in 1947 and the Declaration of Helsinki in 1964 to protect human rights and require ethics committee approval. The document outlines the role of ethics committees in reviewing research and the rights of research participants.