Nootropics which are also called smart drugs and cognitive enhancers are drugs, natural supplements, and other substances that can enhance the brain function in healthy people. It may improve cognitive function, particularly executive functions, concentration, memory, creativity, or motivation. It can also slow down the age-related declines in brain function. The word nootropic was derived from the Greek “to bend or shape the mind.” Here are some of the best brain supplements that may improve your brain function for better performance at work, school, or play: 1. Caffeine - it has a bitter taste and is found in the seeds, nuts, or leaves of a number of plants native to Africa, East Asia and South America which includes Coffee beans, Tea leaves, Kola nuts, and Cacao pods. It is a natural stimulant and it is the world's most widely consumed psychoactive substance. It stimulates the brain and central nervous system which reduce the feeling of tirednes...