Hi, @madridbg Greetings, I have a son who suffers from essential tremor, I have read and studied a lot about neurotransmitters, to carry out these neuronal communications that allow us to perform all kinds of actions, our nervous system makes use of molecules called neurotransmitters. There are many of them, and one of the most important is dopamine, a substance associated with the production of pleasure and happiness. Therefore I find your publication interesting and instructive, thank you for making it, much success.