Rhonda Patrick· PhD
The third one you named, glutamate, is the most important neurotransmitter. A lot of people have heard of dopamine and serotonin because dopamine links with addiction and serotonin links with depression. But it turns out that least 90% of the nerve cells in your brain deploy glutamate as neurotransmitter. And those neurons are distributed in every brain region: throughout the cerebral cortex, other brain regions, hippocampus, brainstem, basal ganglia.