My background is as follows: I have a mild stutter which became worse after I started in my first job one year ago. I was searching for some tips for self-treatment and three months ago I found a thread at stutteringforum.com by a guy who acquired full control of his speech after two months of abstinence from masturbation.
It's an established fact that adults who stutter, as a group, have excessive dopamine in the striatal (sub-cortical) regions of the brain (=overactive regions that modulate verbalization). At first, I have been looking into some dopamine antagonists, mainly antipsychotic drugs, but the side effects scared me. I'm currently using something called Zenbev, which contains tryptophan to stimulate serotonin release, which in its turn should dampen dopamine levels, also very relaxing.
Btw, I was masturbating around 20 times a week at that time. I tried to quit this habit and saw a huge improvement after one and a half week of abstinence -- a record which I still have not beaten since, because I keep relapsing.
Anyway, I'm interested to know about long-term endocrinology of abstinence, not the two days effect of prolactin fluctuations etc, but what actually happens after 6-8 weeks of abstinence...