Abstinência aumenta longevidade?

Nas freiras sim, em algumas espécies também:
https://www.thesun.co.uk/living/2677263/experts-have-come-up-with-a-simple-way-to-live-for-longer-but-it-involves-giving-up-sex/
Citando:
"Even though the study is yet to be tested on humans, leader of research Dr Michael-Silva believes the same principle can be applied.
He explained: “Nuns tend to have a longer lifespan than women with children and most people know of someone with a maiden aunt who seems to live forever.
“The question is, why? The beetles which mate die sooner than the beetles which don’t mate.”
Not only is the immune system believed to weaken during sex, there is the added risk of contracting an STI."