The movie and subsequent TV show Limitless introduced millions of people to the concept of nootropicsIt sparked an explosive growth of a new industry marketing chemical substances as cognitive enhancers or smartdrugs, promising an unfair advantage. Where's the catch?Romanian psychologist and chemist Corneliu E. Giurgea coined the term “nootropic” in 1972It is derived from the Ancient Greek words νόος, meaning “mind”, and τροπή, meaning “a turning”. Giurgea synthesized piracetam in the 19...