Older father, younger mother, bad idea for baby?

By Steve Connor, Science Editor © Independent.ie

Children conceived by men over the age of 45 struggle in intelligence tests.
The trend for men to follow in the fertile footsteps of Michael Douglas, Mick Jagger and Rupert Murdoch by becoming fathers in later life may have unforeseen and unwanted consequences for their children.
The offspring of older fathers are more likely to do less well in intelligence tests than the children of younger men, scientists say, and it may be the result of genetic problems with the sperm of men over 45. The children of older mothers, by contrast, tend to fare better in intelligence tests than children with younger mothers. The researchers believe this may be the result of better nurturing by more mature women.
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