GABA acts primarily as an inhibitory neurotransmitter in the central nervous system, it actually changes over the course of neural development following the person’s age. It acts in different ways responsibly either in the growing brain or mature brain. GABA acts to reduce anxiety responsibly. During anxiety, the central brain and fear circuits get hyperactive. Then GABA neurons get out and flow into the receptors sites and meet the empty spaces in postsynaptic receptors.