Abstract

Nanotechnology (NT)‐enabled disease‐free life is a form of reconstruction of the human body that promises a paradigm shift toward a new form of human existence in an imaginable life. However, as human reconstruction may be within the limits of the concept of “human enhancement,” it is not clear to what extent “enhanced humans” will be ethically acceptable or desired. This study discusses the ethical implications of NT‐embedded enhanced humans and this new imaginable life. First, ethical concerns arising from the existence of a grey zone of certain dilemmas regarding benefits and possible/unpredicted risks are addressed in terms of the four main principles of bioethics. Then, we focus on the ethical problems in human nano‐enhancement. Finally, we study the methods of analyzing these ethical problems within the framework of principlism to conceive a comprehensive and coherent bioethical understanding.