Plain-language explanation.
Bioethics is the study of ethical issues arising from advances in biology and medicine. It addresses questions about patient rights, the limits of treatment, the ethics of research, and emerging challenges posed by genetics, AI, and biotechnology.
Core concepts and standard treatment.
Core bioethics is structured around the four principles framework (principlism — Beauchamp & Childress): autonomy (the patient's right to make informed decisions — informed consent, capacity assessment, advance directives), beneficence (acting in the patient's best interest), non-maleficence ('first, do no harm' — risk-benefit analysis, therapeutic privilege), and justice (fair distribution of healthcare resources — rationing, organ allocation, health inequalities). Other key frameworks: virtue ethics in medicine, narrative ethics, care ethics, and feminist bioethics.
Deeper theory, debates and edge cases.
Advanced bioethics covers research ethics (Declaration of Helsinki; Belmont Report — three principles; IRB/REC review; randomised controlled trials and equipoise; research in LMICs — 'standard of care' controversy; dual-use research of concern — DURC in biosecurity), genetics and genomics ethics (genetic testing — predictive testing, presymptomatic, newborn screening; consent for whole genome sequencing — incidental findings, secondary findings; BRCA testing; direct-to-consumer genetics — 23andMe, AncestryDNA; germline genome editing — He Jiankui case — Nuffield Council report), end-of-life ethics (euthanasia and assisted dying — legal landscape; doctrine of double effect; withdrawal of treatment; palliative sedation — GMC guidelines), and AI in medicine ethics (algorithmic bias, data governance, explainability — black-box vs interpretable AI; digital phenotyping; surveillance medicine).
How it is applied in practice.
At the clinical ethicist, medical humanities researcher, and health policy adviser level, practitioners contribute to Journal of Medical Ethics and Hastings Center Report; chair NHS Research Ethics Committees (REC) and clinical ethics advisory groups; advise NICE on ethical frameworks for health technology assessment; contribute to Nuffield Council on Bioethics reports (genome editing, AI in healthcare, mental capacity); engage with parliamentary committees on assisted dying, euthanasia, and reproductive ethics; and advise pharmaceutical companies on ethical drug development frameworks (benefit-risk, compassionate use, named patient programmes).