Gamma Amino Buturic Acid (GABA) sounds scary but it's an important neurotransmitter for our brains. It's an inhibitory to excessive neuron firing. GABA has been around for a long time but when I asked my neurologist why it didn't work, he said that "we don't know the transport mechanism for it yet, how to get it past the Blood Brain Barrier (BBB)". So he put me on anxiety meds that artifically raise GABA levels or "look" like GABA to the brain. WELL, now biologists have discovered that the transport mechanism is L-Theanine. It's an amino acid that is found in Green Tea. It's available for sale to the public! Not only that but it WORKS. [website addresses removed as per rules] The last site says that it increases dopamine and sex drive!