“According to new research, there may be a surprisingly effective way for men to increase their lifespans — but it requires a pretty severe alteration to the physical body that may not appeal to everybody.
An international team led by researchers from the University of Otago in New Zealand were able to show that castration of male sheep delays the aging of DNA, and the same principles could apply to humans as well.–Victor Tangermann, “Wanna Delay Aging? Get Castrated, Scientists Say
It’s not an ideal solution..” Futurism. July 7, 2021.
I’ll just point to “Ask Your Doctor: Is Castration Right For You?” published on this very blog on May 25, 2017. Now, we can add sheep to the myriad examples.