Children of Older Fathers Have Lower I.Q. Scores
Children of older aged dads generally scored lower on I.Q. tests & various other cognitive measures at 8 months old, 4 years old & 7 years old.
Advanced paternal age (APA) may therefore be associated with poor performance on neurocognitive measures, based upon testing at regular intervals in a variety of cognitive skills, including thinking and reasoning, concentration, memory, understanding, speaking and reading, as well as motor skills