Older Dads

NYT: Older Fathers Linked to Lower I.Q. Scores

Regardless of their mothers’ ages, children whose fathers were 50 years old had lower scores on all tests, except those assessing physical coordination, than those whose fathers were 20, the researchers found. And the older the fathers, the more likely the children were to have lower scores, they found.

By contrast, children with older mothers generally performed higher on the cognitive measures, a finding in line with most other studies, suggesting that these children may benefit from the more nurturing home environments associated with the generally higher income and education levels of older mothers, researchers said.