GABA« Back to Glossary Index
γ-Aminobutyric (Gamma-aminobutyric) acid, or GABA, is the main inhibitory neurotransmitter in the central nervous system (brain and spinal cord) of mammals. Its primary role is to reduce the excitability or dampen the actions of cells throughout the nervous system. In humans, GABA is also directly responsible for regulating muscle tone. Learn more HERE.