Life-extension: a biomedical goal? Scientific prospects, ethical concerns.

The potential for development of biomedical technologies capable of extending the human lifespan raises at least two kinds of question that it is important both to distinguish and to connect with one another: scientific, factual questions regarding the feasibility of life extension interventions; and questions concerning the ethical issues related to the extension of life- and healthspans. This paper provides an account of some life extension interventions considered to be amongst the most promising, and presents the ethical questions raised by the prospect of their pursuit. It is suggested that problems concerning the effects of these technologies on health care resources and on intergenerational relationships will be the most difficult to tackle.