Adderall is one of the most commonly prescribed stimulants and is most often used to treat cases of ADHD. It’s also recreationally popular among people who don’t have ADHD, making it notorious for widespread abuse and addiction. It’s important to be aware of how Adderall works, what it’s used for and how it affects those with and without ADHD. Adderall increases the levels of dopamine and norepinephrine in the brain. In people with ADHD, this can improve alertness and attention. However, the chemical changes that Adderall makes in the brain can cause people using it to feel high, especially when too much is used