How Modafinil Works

Modafinil is a central nervous system stimulant, which means that it works by stimulating the activity of the brain and spinal cord. Researchers believe that modafinil exerts its health benefits by boosting the levels of important brain chemicals (neurotransmitters) such as dopamine, serotonin, norepinephrine, histamine, glutamate, and orexin. Compared to other cognitive enhancers like amphetamines, modafinil is very safe and has fewer side effects.