The perils of putting off fatherhood: why it poses risks to children's physical and mental health

Men have biological clocks too. Fertility drops with age, and the likelihood of offspring having conditions such as autism, schizophrenia and leukaemia rises When we think of the effects of age on baby-making, we tend to focus on women. That withering supply of eggs. Those chromosomal problems. Infertility. But men are affected by age too. There is now a substantial - and growing - body of evidence that suggests delaying fatherhood may carry its own consequences. These are seldom talked about - ...