Brain Studies on Porn Users

Max Planck Institute logoRecent studies assessing brain structure & functioning of 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 31 - ED & fetish porn: I had sex 4 times in 24 hours. I got hard and lasted!

Two smiliesI came to NoFap because of porn-induced erectile dysfunction: I couldn't keep my dick hard while having sex and was convinced that porn played a role in the situation.

Age 23 - ED almost cured: I have grown so much over the past 90 days.

contented couple in bedI don't post here but I do browse occasionally and thought I would give you my story. I am a 23 year old male who has given up porn. I never fell into the niche/weird fetishes of porn, just a daily user since middle school who grew up with porn.

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.

Age 24 - More courageous, energetic & animated, Far less apathetic, I appreciate women so much more

young guyApathy was the worst thing to happen to me. I feel like I am gaining my color back. I am starting to talk to a girl and things are going quite well. That isn't usual. I feel more courageous and more animated.

Age 31 - More confident, depression symptoms gone, ADHD symptoms much improved, Rock hard boners

100 daysAccording to my "Don't break your chain" app, this is my 100th day of not fapping to porn. About 60-something days in, it became part of my identity.

Age 18 - My life has literally changed because of this

young guyI experienced TONS of benefits . My motivation level is higher than ever . I have started working out and taking care of my health. Its crazy how much attention i have been getting from ladies while on Nofap.Never happened before.

Age 32 - My concentration is up and my anxiety is down

Dansk flagWell I did it. I made it 90 days with no fapping, watching porn or orgasms. It was very tough at first but after around 40 days it became such a great feeling that I had made it that far.

90 days - My words and smile are so easy now. I am comfortable with who I am

flirting coupleI crossed 90 days for the first time after trying for over a year, beating my previous best of 38 days by quite a margin. The biggest benefit is improvements to my demeanor/body language and small talk becoming much, much easier.

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.

Age 26 - ED: sex felt amazing, and I have greatly improved my situation.

happy guyThis is my second attempt at NoFap. I decided to do it because of my PIED problem - a month ago, if I wanted to maintain a stable erection during sex (particularly with a condom, but also without one), I had to take Cialis.

Age 20 - Reboot has been incredible. So many benefits and changes

flirty coupleI'll keep this brief but with good content. So i was using this forum, but one day decided to leave and work on my life while continuing the fight against the drug addiction known as pmo and my life has changed in an incredible way and to put it bluntly no fap has saved my life in a big way.


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