An on-line friend has been compiling research and references on the impact of advance paternal age on children. There is evidence that older fathers are statistically more likely to have children with conditions such as schizophrenia and autism. I have alluded briefly to this research in some of my speeches and articles, such as this one.
This compilation of research runs to 223 pages. If anyone is interested in having this report, I will gladly forward it along to you.