It is widely known that women have their own biological clock where, as they age, they become less and less able to conceive babies. I think the cut-off for them lie just after the age of 45.
Men, on the other hand, are able to father a child long after women have hung their panties out to dry and be moth-balled.
There are a number Filipino men who I think will be able to contribute to this study.
The first person that came to my mind after reading the report was the 65-plus year old Filipino, Dolphy, who, as most of you Filipinos know, managed to produce more than 15 little versions of himself. His latest wife, another celebrity by the name of Zsa Zsa Padilla, can still attest to his vigor and zest in bed. People won't be surprised to hear reports that she's pregnant with an additional Quizon heir.
Going back to the report, I have to admire those researchers for their spunk (no pun intended) and tenacity to acquire the needed data. I mean, the only way you can determine the ability of a person to father a son is to ask for his sperm samples. And to get the needed data to prove that sperm cells deteriorate through time, you need to get samples across different age groups.
Acquiring sperm samples from teenagers is a piece of cake. Everyone knows they have lots of it so they can afford to share it. They problem lies with older males. Knowing that their little sperms are slowly dying, why would they opt to give them to a medical study that only confirms what everyone already knew rather than use those few remaining healthy sperm cells to create new babies? Most old timers are already successful. They can afford to have a new baby since most of their children are already grown-ups and should have stable jobs that can support them if necessary. Why not go for another?
There will also be ethical issues that need to be addressed. One is the fact that researchers knew or, at the very least, had a hunch that a person's sperm cells deteriorate through time. By knowing this, why would they get an old person's sperm cell while knowing that there is the possibility that it may be the last batch of baby-producing sperm cell that the person will have? Is it not endangering the ability of a person to have kids?
Well, that's a HARD and STICKY issue to contend with.