article_snippet.sent: Women have long been warned that the older Women are, the greater the risk of health problems for Women and Women baby - but research now suggests older fathers can also affect baby's health.
article_snippet.sent: Two-thirds of new UK fathers are now over 30, and the researchers say older would-be fathers should be better informed about the risks of conditions that can occur in Two-thirds of new UK fathers offspring.
article_snippet.sent: Worldwide data from more than 60 teams of researchers on the health risks associated with older fathers found that men aged over 35 had a 50 per cent lower chance of conceiving over a 12-month period than men 25 and under, even after taking into account the age of the would-be mother.
article_snippet.sent: The risk of miscarriage and premature birth also rises when the man is more than 40.
article_snippet.sent: A study of 23,821 pregnant women analysed by the researchers found that pregnancies involving men aged 50 or older were twice as likely to end in the loss of the foetus compared to younger fathers.
article_snippet.sent: Advanced paternal age (over 40) increases the risk of breast cancer in their daughters by around 60 per cent, according to one of the studies the American researchers looked at (one of five to find a link between advanced paternal age and breast cancer).
article_snippet.sent: Children conceived by fathers over 40 also have a 30 per cent increased risk of epilepsy, a 37 per cent higher risk of Down's syndrome, a 14 per cent greater chance of childhood leukaemia, and a 70 per cent greater likelihood of central nervous system cancers (such as brain tumours).
article_snippet.sent: If the father is over 45, there is a threefold increased risk of retinoblastoma, a rare type of eye cancer.
article_snippet.sent: Older fathers are thought to be at higher risk of having children with autism and schizophrenia.
article_snippet.sent: If the father is over 45, there is a threefold increased risk of retinoblastoma, a rare type of eye cancer .
article_snippet.sent: Advanced paternal age can also lead to birth defects, say the Baylor researchers, whose study is being published in the journal Fertility and Sterility.
article_snippet.sent: It is not as marked or obvious an effect that we observe in women, which makes it all the more insidious and risky for populations in which men are reproducing later in life. 'whose study is telling us us need to sit up and take note, and start to educate the public on the risks of the male biological clock, and not just the female.'
article_snippet.sent: Women are generally counselled that as Women reach Women late-30s, Women risk of not just conceiving, but of having a healthy child decreases as the quality and quantity of Women eggs deteriorate.
article_snippet.sent: At 35, a woman's risk of conceiving a child with Down's syndrome is about one in 350, but by age 45, it is about one in 30.
article_snippet.sent: Yet currently, patients are rarely warned about how advanced paternal age may present risks to patients offspring, but this should change, says Dr Dolores Lamb, director of the Centre for Reproductive Medicine and Professor of Urology and Molecular and Cellular Biology at Baylor College of Medicine. '
article_snippet.sent: The medical community must do a better job of educating couples that there are some risks associated with conception at advanced paternal age,' she says.
highlights_snippet.sent: Two-thirds of new UK fathers are now over 30 .
  
highlights_snippet.sent: The older Two-thirds of new UK fathers are, The greater the risk of health problems .
  