Balancing brain chemistry

1. Neurotransmitter precursors vs. receptor agonists (Nootropic Key Ideas)
2. Dopamine agonists vs. dopamine enhancers (Nootropic Key Ideas)
3. Neurotransmitter reuptake vs. enzymatic degradation (Nootropic Key Ideas)
4. Dopamine vs. serotonin vs. norepinephrine (Nootropic Key Ideas)
5. Neuropeptides vs. neurotransmitters (Nootropic Key Ideas)