Gamma-aminobutyric acid (GABA) is a neurotransmitter in the brain that plays a critical role in reducing neuronal excitability throughout the nervous system. It is often referred to as the primary inhibitory neurotransmitter, meaning it helps to calm brain activity and regulate anxiety levels. By binding to GABA receptors, this neurotransmitter inhibits excessive firing of neurons, contributing to feelings of relaxation and tranquility, which are particularly important in understanding anxiety disorders.
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