L-Theanine
- Mental energy vs. physical energy (Nootropic Key Ideas)
- Short-term effects vs. long-term benefits (Nootropic Key Ideas)
- Synthetic vs. natural nootropics (Nootropic Key Ideas)
- Synergistic effects vs. additive effects (Nootropic Key Ideas)
- Acetylcholine vs. glutamate (Nootropic Key Ideas)
- Alpha brainwaves vs. theta brainwaves (Nootropic Key Ideas)
- Cortisol vs. adrenalin (Nootropic Key Ideas)
- Neurotransmitter precursors vs. receptor agonists (Nootropic Key Ideas)
- Stress management vs. cortisol reduction (Nootropic Key Ideas)