Thanks to
RA Fisher, genetics has been linked to scepticism about a causal
relation between cigarette smoking and lung cancer.1, 2 Fisher3
argued that the association between smoking and lung cancer was
explained by shared genes that predisposed people to initiate
smoking as young adults and to develop lung cancer in late
adulthood. Much use was made of his hypothesis by the tobacco
industry to manufacture a spurious controversy about the health
effects of smoking, a fact that may have discouraged public health
research into the genetic contribution to smoking.1