Mental Illness Risk Higher for Children of Older Fathers, Study Finds.

[hunter]

3. Recessive genes, who knows?

This kind of question, anything having anything to do with the mind, is difficult.

I don't have the study.

Someone who chooses "career first, kids later" might have genetic propensity to do that, but that same mental propensity might also manifest itself in slightly increased odds for having, say, an autistic child. Then it wouldn't be a consequence of deteriorating sperm or anything like that, it would have been something there in the father from the start.

I don't mean it in the sense that the man was hiding some mental illness from himself or others.