Massey University Survey: "Consumption of Pornography" (Erectile functioning)

This research survey on the effect of porn on erectile functioning should take you no longer than ten minutes to fill it out, but will add much to the current scientific understanding of porn-induced erectile dysfunction.

Link to Survey: Consumption of Pornography

Brain Studies on Porn Users

Max Planck Institute logoRecent studies assessing brain structure & functioning of internet porn users:

  1. Brain Structure and Functional Connectivity Associated With Pornography Consumption: The Brain on Porn (2014) - A German study which found 3 significant addiction-related brain changes that correlated with the amount of porn consumed. It also found that the more porn consumed the less activity in the reward circuit, indicating desensitization, and increasing the need for greater stimulation (tolerance).
  2. Cambridge University logoNeural Correlates of Sexual Cue Reactivity in Individuals with and without Compulsive Sexual Behaviours (2014) - The first in a series of Cambridge University studies found the same brain activity as seen in drug addicts and alcoholics. It also found that porn addicts fit the accepted addiction model of wanting "it" more, but not liking "it" more. The researchers also reported that 60% of subjects (average age: 25) had difficulty achieving erections/arousal with real partners, yet could achieve erections with porn.
  3. Enhanced Attentional Bias towards Sexually Explicit Cues in Individuals with and without Compulsive Sexual Behaviours (2014) - "Our findings of enhanced attentional bias... suggest possible overlaps with enhanced attentional bias observed in studies of drug cues in disorders of addictions."

These study results are consistent with 100 internet addiction brain studies, many of which also include internet porn use. In short, there's ample (and growing) peer-reviewed scientific support for the addiction model.

Start here for a brief overview of concepts & science

This article is a short synopsis of some key concepts. For the science behind it, please follow all the links and read this page. Some links go to our articles, which in turn link to studies. For a more in-depth understanding and further evidence see The Research Page. For specific content explore Porn FAQs.


What happens when you drop a male rat into a cage with a receptive female rat? First, you see a frenzy of copulation. Then, progressively, the male tires of that particular female. Even if she wants more, he has had enough. However, replace the original female with a fresh one, and the male immediately revives and gallantly struggles to fertilize her.

Gary's TEDx talk - "The Great Porn Experiment"

Captions also available for 한국의, Chinese, Português, Czech, Deutsch, Estonian, עברית, Hungarian, Italian, Polski, Serbian, Slovak. To see them, click on the 'YouTube' logo to watch on YOUTube. Then, when you get there, click on "CC" for captions (bottom right of screen). Ver YBOP series in Español. Make captions in your own language!

Age 25 - My Story: A life forever changed

guy hikingLet me start with my pmo history. I started looking at porn at the age of ten then started masturbating at the age of 12. Continued this pattern until my clean break in March of this year. I'm 25 so that makes 15 years total of porn addiction.

Age 37 - ED cured: So much more feeling, sensitivity, passion, love, raw animal lust, just fantastic sex!

coupleWorking from home the last year and PMO was way too easy and way too frequent. As the title says, decided Hard Mode was the only option after a few pretty bad instances of not being able to keep hard enough to really have decent sex.

Age 47 - I grappled with ED for years. A wonder my wife stayed. Erections are now as strong as I can remember

banana in the pocketI grappled with ED for years. Years. I was rarely able to get a sufficient erection to have sex with my wife. It is a wonder she stayed with me. This absolutely works if you let it. Take it from me.

Research confirms enormous rise in youthful ED

worried guy in bedroom with girl If we compare recent research to earlier studies, young men today are experiencing anywhere from a 600% to 3000% increase in ED since the advent of the internet. All studies assessing young male sexuality since 2012 report a tremendous rise in erectile dysfunction and low libido.

NFA Reboot Camp now open!

Need support getting some traction in your recovery? Click here to check it out! Here's what a Reboot Camp member has to say:

113 Days - I thought my cock was just numb

fire spinningI've been an adventurous person most of my life; Theater, Logging, USMC, Backpacking, Fire spinning. I've loved that thrill, that rush, that exhilarating moment of being completely present. I was never good at focusing on it though...In the back of my mind was always sex.

3 Brutally Honest Reasons Why You're Still Addicted to Porn

failHave you been struggling with porn addiction for more than a year?

I want to tell you EXACTLY why you’re failing, so you can pick yourself up and overcome this.

I'm viewing the world in a whole new perspective

sunsetJust hit 90 days today and thought I would share an amazing experience I had last night. For the first time in my life, I sat outside and enjoyed the beautiful sunset yesterday evening.

Middle-aged virgins: Why so many Japanese stay chaste

art class in JapanTokyo (CNN)When I was a young, single woman in Japan in the 1980s, the economy was red hot and so was the dating scene. Cool girls weren't ashamed of losing their virginity before marriage.


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