Research suggests

Arousal addiction is different to drug addiction, 1.   With arousal addiction – you want different. 2. With drug addiction – you want more, more of the same.

By - Dr. Philip Zimbardo on 'The Demise of Guys'.

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Internet porn is killing our mens sexual performance

Survey by the Italian Society of Andrology and Sexual Medicine, February 2011.

All addictive behaviours hacks and hijacks the brains reward center.  Too much dopamine can kick in a molecular switch called the delta-fosB and that starts to accumulate in the brains reward circuit. This can alter the brain and promote a cycle of binging and craving. Theses brain changes can be seen in all addicts.

Structural brain changes in the frontal cortex include - Numbed pleasure response, Hyper-reactivity to e.g. porn (everything else is boring), and willpower erosion.

It starts with lower reactions to porn sites (gradual desensitization), Then there is a general drop in libido, and in the end it may become impossible to get an erection.

 -        Dr Carlo Foresta, head of the Italian Society of Andrology and Sexual Medicine,     

 For porn addicts often the only thing that gets their attention is ED (erectile dysfunction).            

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Porn induced symptoms (with or without addiction) for men or womenmay include - 

Erectile dysfunction

Anorgasmia 

Delayed Ejaculation

Declining interest in real partners

Lethargy, lack of motivation

Lack of confidence

Escalation to porn that doesn't match original tastes or sexual orientation 

Concentration problems

Brain fog