Long before the Romanian pharmacologist Corneliu Giurgea coined the term "nootropic", a group of plants that contain the "nutrients beneficial for the brain" has been described in the texts of Ayurveda". Such plants are used for thousands of years to improve the mental processes - memory, concentration and learning ability. The mechanisms of these effects can be implemented in various ways, including through the antioxidant response, improved cerebral circulation and oxygen saturation of the brain tissue, as well as through strengthening the transmission of nerve impulses.