Answer:
Dopamine
Step-by-step explanation:
Among the least understood neurotransmitters was dopamine, a messenger molecule recently regaining attention in central nervous system functions :
Movement, focus, mood & motivation, and dopamine realese in orgasms.
The role of dopamine was mostly due to its relationship in treating Parkinson's disease.
It was often underestimated but, dopamine is crucial to experience motivations and rewards , as well as a healthy motory system.
Contrary to what we could believe, high levels of Serotonine tend to hinder the mechanisms leading to orgasm.
Also dopamine was key for studying the mechanisms in addictions.
Neurotransmitters are present in all the body. In any case , the correct levels of all neurotransmitters turns into a balance for mantaing health.