Reply #117: i am not opposed to that, but that is not addressing [View All]

[seabeyond]

the result of older male sperm. it is addressing older, mature parents raising children. they are generally higher achievers.

http://www.ctv.ca/CTVNews/Health/20090310/older_dads_090310/

Children who are fathered by older men tend to perform worse in intelligence tests than the children of younger dads, Australian and U.S. scientists report in study they say is the first of its kind.

But in an interesting contrast, children with older mothers tended to have higher scores in the same tests, the researchers found.

They found the children of older dads performed less well in intelligence tests conducted at age eight months, four years and seven years. The older the father was when he had the child, the worse his children tended to do in the tests.

Regardless of their mothers' ages, children whose fathers were 50 years old had lower scores on all tests than those whose fathers were 20. The only exceptions were results of tests that assessed physical co-ordination.