VGPolyglot on 30 April 2018
This link says that there are no physical side affects to masturbation (I can object though considering what's happened to me from excessive masturbation 
) but I don't know if it actually increases your lifespan:
https://www.nuh.com.sg/news/media-articles_1936.html
I don't know if there is any conclusive study on the matter.
