This document provides an overview of bioethics. It begins by defining ethics as the study of morality and principles of conduct. Bioethics is then defined as applying ethical principles to medicine and healthcare issues arising from biotechnology and medical advances. The history of bioethics dates back to ancient times but the field emerged in the 1970s due to new ethical issues. Principles of bioethics include beneficence, non-maleficence, autonomy, and justice. Examples of ethical issues discussed include abortion, euthanasia, human cloning, and stem cell research. The document emphasizes that science and research must be conducted ethically.