I'll give you an example to make it clear what I mean. Some people have the ability to influence the body with the help of thought (nothing fantastical, only partial subordination of nerve endings). I was able to see how a person contracts a muscle that I could not control. It is only through training. And I know examples of people who increased their concentration (they could very quickly complete a certain algorithm of actions without being distracted) as a result of deviations that arose during development. The so-called savants. And my answer to my question is the answer to the question, is it possible to train yourself to the level of a savant?
No, the brain is a part of the nervous system, it consists of nerve cells, neurons, and glial cells serving these neurons. In short, the brain is nerve tissue, and muscles are muscle. Learn Bio.