Cure-Erectile-Dysfunction.org

The sources of your happy life are from your brain's Acetylcholine, Dopamine, Serotonin, Histamine and GABA (GHB) systems. Acetylcholine powers the parasympathetic, sympathetic and sensory nervous functions, and assists the dopamine function. The erectile mechanism is mainly driven by the Acetylcholine-Parasympathetic action, which produce the Nitric Oxide(NO)(erectile neurotransmitter) and cGMP(erectile dilator). On the other hand, the dopamine-norepinephrine axis boosts libido and promotes the burning of testosterone, which expands the penile tissues to an extreme state. Then, a large amount of norepinephrine becomes epinephrine(adrenaline) by conversion. That triggers the sympathetic "Fight or Flight" command, where "Fight" means ejaculation and orgasm (if acetylcholine action is sufficient) and "Flight" the erection or engorgement withdraw (if the acetylcholine action is insufficient).

Serotonin can block or reduce the norepinephrine-adrenaline conversion(adrenaline is the main enemy of erection or engorgement in the foreplay and erectile states for middle agers and seniors). In the foreplay and erectile states the stress hormone (adrenaline) can also block the incoming parasympathetic motoring communication from the brain to the targeted organ. Without the stress hormone (adrenaline) and with a high testosterone level, the parasympathetic nervous communication from the brain (the ParaGigantocellular Nucleus, or PGN) to the sex organs - the erection circuit will be frequently turned on. 5-HTP can block the dopamine-norepinephrine - epinephrine conversion, thus resulting in the retention of high levels of dopamine in the brain.