GABA is an inhibitory agent.” “Meaning, it impedes brain activity?” “Exactly. It actually decreases neuronal firing and constrains the overall activity of neurons. In other words, GABA shuts off parts of the brain in an effort to filter out excessive input. In our most basic understanding of it, GABA filtering ensures the brain does not become overloaded with too much information. In the radio analogy, GABA is like the tuner that limits reception to a single frequency while blocking out dozens of others.”
