the prefrontal cortex (the part of the brain behind your forehead). This is the last part of the brain to develop in childhood and first to exhibit decline in adulthood. It is primarily responsible for working memory, executive function, and inhibitory mechanisms—that is, the ability to block out information extraneous to the task at hand, so we can focus and improve in our core skill. A big, strong prefrontal cortex makes it possible for you to get better and better at your specialty,
