Dopamine is a neurotransmitter associated with satisfaction. The scarcity of Dopamine in the brain is associated with the symptoms of ADHD. Stimulant medication works by increasing the presence of dopamine in the brain. There are some non-medication ways of increasing dopamine in the brain. Use of the procedures are useful when it is inconvenient to use medication. Some ADHDers have been able to avoid medication altogether by using these techniques.