From a sheet I used to keep: Caffeine: Stimulant/Vasoconstrictor/dopaminergic half-life: ~5 hours Fat + water soluble Ideal dosage < 200mg; 50-100mg per da

From a sheet I used to keep: Caffeine: Stimulant/Vasoconstrictor/dopaminergic half-life: ~5 hours Fat + water soluble Ideal dosage < 200mg; 50-100mg per day Benefits: boosts working memory, reduces re-uptake and increases production of dopamine, improves alertness, attention span, memory retrieval, acetylcholinesterase inhibitor. Downside: increased blood pressure and sustained high levels of heart rate, adesonine reuptake inhibitor and mildly addictive through dopaminegic pathways, acetylcholinesterase inhibitor. Synergistic with: theanine, sulbutiamine Possibly: antioxidant effect+, MAO A and B inhibitor+ , protective vs Parkinson's+, damaging to hippocampus- , damaging to short term retrieval of unrelated tasks- Decision: Minimize usage to less than weekly.