Nootropics describe a broad classification of drugs or compounds with cognitive enhancing properties with minimal side-effects appropriate for long-term use — the scientific nomenclature for "smart drugs."
So how do nootropics work?
1.) By increasing levels of various neurotransmitters associated with learning and memory.
2.) Boosting vasodilation of the brain thereby increasing brain blood and oxygen flow.
3.) Preserving and protecting the brain's neurons via toxin removal and anti-oxidation.