The Third Edition has been updated to cover new and emerging areas of interest including: the role of computerized communication technologies in providing access to medical information; new medical technologies and how they contribute to people′s understandings of their bodies and selfhood; how bioethical issues and dilemmas are negotiated in clinical settings; the changing role of nurses in healthcare provision; and new research in neuroscience on the plasticity of the brain and the notion of ′brain types′ and how this research contributes to novel understandings of the brain in lay and medical cultures.