Where are the case studies in which p0rn has proven to have a negative side effect on health? If you don't have facts then sit your as$ down. You have your right to an opinion but that's all it is, an opinion.
Masturbation is a normal sexual act, as for whoever called it "ihumane" there are animals in nature who masturbate, it's not a "human" thing, it occurs in nauture.
If you've never masturbated you must have one big stick up your as$, which is why you created this thread.
Yes there is such thing as **** addiction and that can have a negative effect on your relationship, but it's in no way a negative to your health.
Now as for people having died of masturbation, that has something to do with the cardiovascular health of that person, because people have also died during sex with someone. If you have shortness of breathe while masturbating, get your self in shape fatty!!