Drugs like Adderall tend to increase Dopamine and Norepinepherine. The idea being that people with ADHD tend to not have enough of these chemicals. When they

Drugs like Adderall tend to increase Dopamine and Norepinepherine. The idea being that people with ADHD tend to not have enough of these chemicals. When they take drugs like Adderall, they feel better. If they take too much, or someone who already has enough of these chemicals takes them, they tend to become irritable and have trouble sleeping.