Gamma-aminobutyric acid (GABA) is an important neurotransmitter that is found throughout the central nervous system. GABA is also a very important neurotransmitter, found in high concentrations in the brain, because it can greatly increase the body’s ability to handle stress. GABA is an inhibitory neurotransmitter.
This interesting neurotransmitter acts as a mild sedative in the brain. Because of GABA's beneficial sedative affects, anxiety medications exploit this neurotransmitter by increasing its production.