RT Journal Article SR Electronic T1 Life extension and the burden of mortality: Leon Kass versus John Harris JF Journal of Medical Ethics JO J Med Ethics FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP 336 OP 340 DO 10.1136/medethics-2013-101438 VO 40 IS 5 A1 Andrea Sauchelli YR 2014 UL http://jme.bmj.com/content/40/5/336.abstract AB Some bioethicists have questioned the desirability of a line of biomedical research aimed at extending the length of our lives over what some think to be its natural limit. In particular, Leon Kass has argued that living longer is not such a great advantage, and that mortality is not a burden after all. In this essay, I evaluate his arguments in favour of such a counterintuitive view by elaborating upon some critical remarks advanced by John Harris. Ultimately, I argue that nothing substantial has been said by Kass to undermine the desirability of life-extending technologies.