There are none.

Well, that's not entirely true, but relatively speaking, Porn is harmless. Sure, porn addiction can be damaging to one's psyche, social status, and physical well-being, but ANY addiction can do that. I'm just getting so sick of people acting like looking at porn is, without failure, going to force you to ignore work, disregard your girlfriend/wife, stop hanging out with friends, and turn into a scrawny unhealthy mess of a person. The ignorance surrounding the subject is baffling, and I would love to pull a hippie moment and remind people that freedom, openness, trust, honesty, and balance will do more to help your overall standings with friends and family than trying to censor yourself or repress your desires.

Porn is not sinful. It is not harmful. It is not detrimental to your health or well-being. Porn is just another part of life that needs to be approached with regulation and common sense. Hell, even water can kill you if you drink too much. So keep that in mind when trying to demonize something as abundant and harmless as porn.

Seriously, people, it's not hard to enjoy a fap session, or watch porn and get in the mood to go have fun with your partner. The only time something is immoral or dangerous is when it harms someone, and porn only harms if you enjoy it at the expense of others; the same goes for any compulsion.   

Why are you so passionate about porn?

Can we do a study right now and see if anyone here gets hurt?

I don't see why anyone would make large assumptions about people who do watch porn but... I do have to agree with MBP. Why the post of this thread? Did someone get you on your last straw about it or something?

Actually it is according to many religions. 

care to show me a passage in any bible that clearly states that viewing images of an explicit and sexual nature is against God's will?  

becuase I have a small stake in the porn industry and I'm sick of being demonized for it, expecially when the jutification for judging porn and porn users is linked to religion or general ignorance. 

There's actually some evidence that it does something bad to your brain, but I can't remember what it was.

The researches were about internet porn though. I save it on my PC so I'm OK.

Porn can be harmful. It's possible to become very physically picky and judgemental towards your gender of preference. It makes real relationships harder as you seek the best physical bodies for sex. Porn makes sex more physical and less emotional.

Of course everyone reacts in varying ways and degrees to all things, but porn can be a negative influence for many.

"Thou shalt not watch porn" - John 9:12