... messages from nerve cells to other cells. Acetylcholine plays a role in learning, remembering, and thinking; and decreased amounts of ... , keeping more of it in the blood. Frequently called a "cholinergic" effect, the increase in acetylcholine may help preserve or ... that taking Huperzine A may help to relieve dementia. Additionally, in a small study of teenagers, Huperzine A appeared to enhance ...