"Stop watching porno because it steal your focus and your attention causing you not to concentrate on more important aspects of your life, leading you to masturbate more frequently."
Realy "good" advice.
1st if it would be so easy there wouldn't be any addicted people
2nd as it is nicely illustrated in the quote it is a vicious circle and they are not called that in vain
3rd acetylcholine, serotonin and dopamine are not sex hormones
and you could explain a bit more what for example what are other parasympathetic nervous functions
Thanks for that observation and educational criticism.... I stand to be corrected.
My respect for the positive response.
I liked (upvoted) your post for the physiological description of the problem and consequences.
Keep it up and maybe write part two.
Many thanks