DANGER !The Lancet
Late eff ects of ionising radiation exposure include increased mortality risks, and models of the transgenerational effects of radiation exposure predict more genetic disease in the children of people exposed to radiation. However, children of people exposed to the atomic bombs in Hiroshima and Nagasaki had no indications of deleterious health eff ects after 62 years. Epidemiological studies complemented by sensitive molecular techniques are needed to understand the overall eff ects of preconception exposure to ionising radiation on human beings.