Learning facilitators

1. Focus vs. concentration (Nootropic Key Ideas)
2. BDNF vs. NGF (Nootropic Key Ideas)
3. Dopamine agonists vs. dopamine enhancers (Nootropic Key Ideas)
4. Dopamine vs. serotonin (Nootropic Key Ideas)
5. Herbal adaptogens vs. synthetic adaptogens (Nootropic Key Ideas)