New Methuselahs: The Ethics of Life Extension - Paperbackby John K. Davis (Author) An examination of the ethical issues raised by the possibility of human life extension, including its desirability, unequal access, and the threat of overpopulation. Life extension slowing or halting human aging is now being taken seriously by many scientists. Although no techniques to slow human aging yet exist, researchers have successfully slowed aging in yeast, mice, and fruit flies, and have determined that humans share