“The levels of dopamine released by the brain is far higher when watching porn and masturbating than when having normal sex.”To be honest this sounds like little more than a strong argument for professional masturbation and flippant attitude toward sex…
The only problem with masturbation is that you’re training your brain and your dick to like your hand and not a vagina. You’re probably also doing it to fantasy which is not unlike porn.
Then one day it comes time to slide it in and the warm, soft, wet vagina isn’t the dry, high pressure friction of a hand and you lose your boner or it just doesn’t do it for you anymore. This is possibly some guys have to go anal with women.
Now I don’t think just occasional masturbation alone will do that but I believe that you want to train your brain and dick to like the real thing and your brain to be aroused by the touch, smell, sound, and feel (and possibly emotional connection) of a woman, not whatever artificial imagery you’re masturbating to.