JUNE 24, 2019 BY RODDM (Please note this, yet to be updated, publishing date) 

Here’s Google’s quick answer:

Nootropics (/noʊ.əˈtrɒpɪks/ noh-ə-TROP-iks) (colloquial: smart drugs and cognitive enhancers) are drugs, supplements, and other substances that may improve cognitive function, particularly executive functions, memory, creativity, or motivation, in healthy individuals.

Nootropic – Wikipediahttps://en.wikipedia.org/wiki/Nootropic

p.s. The Official Hackstronaut answer is forthcoming…