Having willpower makes you less susceptible to visceral states.
Brain abnormalities might lead to cognitive impairment. that could have significant long-term consequences.
Just a little electricity can change how you make any choice.
Our ability to inhibit impulsive behaviors, to exercise willpower, is considered a core feature of the brain’s executive functions. This, along with others such as reasoning, working memory and attention regulate our thoughts and guide our behavior, allowing us to adapt them to the changing demands of our environment. But the effort our brain puts into refraining from impulses is so great that it can actually diminish its ability to form memories of the experience.