Anonymous wrote:He should try to get them in before 40:
https://www.bmj.com/content/363/bmj.k4372
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4854094/pdf/AJA-18-420.pdf
https://www.ncbi.nlm.nih.gov/pubmed/16953005
https://www.ncbi.nlm.nih.gov/pubmed/24577047
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5299396/pdf/tp2016294a.pdf
There is, for example, a six times higher rate of autism in children of men over 40 vs. under 30. For the person saying correlation does not equal causation, the relationship increases monotonically, i.e. the older the man the higher the risk. So it is pretty clearly causative in this case.
Anonymous wrote:Anonymous wrote:Older fathers are linked to autism (independent of the age of the mother).
Correlation, but not causation. They haven't quite isolate the cause, but it's more prevalent in children with older fathers.
Anonymous wrote:Older fathers are linked to autism (independent of the age of the mother).
Anonymous wrote:Men last, women expire
Anonymous wrote:For women, 35 years old is considered advanced maternal Age, and high risk. How about for men, is there any high risk age for producing sperm? I have a 9 months old baby, currently 28 year old, and DH is 38 years old. He has been pushing the idea of having second kid (would be our last one) asap because he is feeling old & concerning that his sperm quality may decrease over time if we wait for longer. Well, he is afraid of higher chances of baby having genetic disorder. My original thought was not to consider the 2nd one till a few years after.
Anyone can answer me.