Comment by juunpp

From your own link:

> There’s no proof that ejaculating more actually lowers the chances of prostate cancer. For now, doctors just know they’re connected. It may be that men who do it more tend to have other healthy habits that are lowering their odds.

> Ejaculation doesn’t seem to protect against the most deadly or advanced types of prostate cancer. Experts don’t know why.

I'm not the expert but, like all things, exercise, sleep and diet probably goes a long way.