Philip Ball in New Statesman:
For an introduction to this biogerontological mythology, I recommend last year’s documentary The Immortalists, which profiles two of the most vocal advocates of scientific immortality: the computer scientist Aubrey de Grey and the biotech entrepreneur Bill Andrews. Yet the film shows that these men aren’t lone mavericks with unconventional ideas about ageing and its abolition, but participants in a complex and self-supporting network of techno-myth. And as is the case with, for example, human cloning, nutrition and the surprising properties of water, there is no convenient partitioning here into respectable and cranky science. In consequence, the immortality market can’t simply be eliminated by the appliance of science; it needs to be understood as a cultural phenomenon. Ageing is partly genetic but there are no “ageing genes” – merely ordinary genes that may cause problems in later life. Age-related conditions such as heart failure, dementia and cancer typically stem from an interplay between genes and environment: we can inherit predispositions but environmental factors such as diet and pollution affect whether they manifest. (Research that was widely reported early this year as showing that most cancers are due to “bad luck”, irrespective of environmental influences, in fact had a more complex message.)
It is surprising, perhaps alarming, that we know so little about ageing.