Nootropics

Nootropics (pronunciation: /noʊ.əˈtrɒpᵻks/ noh-ə-TROP-iks)—also called smart drugs or cognitive enhancers—are drugs, supplements, or other substances that improve cognitive function, particularly executive functions, memory, creativity, or motivation, in healthy individuals. The use of cognition-enhancing drugs by healthy individuals in the absence of a medical indication is one of the most debated topics among neuroscientists, psychiatrists, and physicians which spans a number of issues, including the ethics and fairness of their use, concerns over adverse effects, and the diversion of prescription drugs for nonmedical uses, among others. Nonetheless, the international sales of cognition-enhancing supplements exceeded US$1 billion in 2015 and the global demand for these compounds is still growing rapidly.

The word nootropic was coined in 1972 by a Romanian psychologist and chemist, Corneliu E. Giurgea, from the Greek words νους (nous), or "mind", and τρέπειν (trepein), meaning to bend or turn.

There are only a few drugs that are known to improve some aspect of cognition. Many more are in different stages of development. The most commonly used class of drug is stimulants, such as caffeine.

...
Wikipedia