Read about few books by Neuro scientists and experts on the subject. It's quite disconcerting to know that the active sexual life if you are married or having a long sexually promising like ahead and also you happens to be a male will be affected in a way I never thought before. Porn watchers will end up watching porn for their satisfaction of sexual needs. The constant exposure to novel models and spending most of the time in digital world you will have your dopamine levels go up, which is goof, but you will never be able to satisfy your partner as you will fail to reach the peak orgasm along with your partner because of Erectile Dysfunction. This happened with me. Though I am in my late forties I found even a good hard on fails after sometime to give pleasure. This happens because our brain got maladaptive by watching virtual porn. The good news is that those who found support and determined to change the habit by joining support group like this and also finding healthier distractions to stop porn watching are found by Scientists regaining normal sexual pleasure after a while. [I would strongly urge the very young guys here to make use of all resources to discontinue the habit altogether. The Internet porn is an ocean of stimulus for the brain, mind you controlled porn watching is nearly impossible.​
if this is a typos then it is by no mean good, most porn addict have trouble doing low-dopamine level things such as studying for one; if not there is no need for the but.
From my own experience having that kind of high level of dopamine kinda make everything else pointless and generally turn me into someone (even more)lazy except when i am looking for more porn.
