Guarana – Natural Nootropic
Guarana extract comes from the berries of Paullinia cupana. This plant is native to Venezuela and Brazil and is found in many popular soft drinks in these countries. Guarana berries naturally contain about 5% caffeine. Due to its caffeine, Guarana is able to boost one’s energy and quicken perceptions.
Guarana shows nootropic, or brain-boosting effects even when the amount of caffeine present is insignificant. It has shown increased performance across attention and sentence verification tasks. (1)
(1) Kennedy, Haskell, Wesnes, Scholey. Improved cognitive performance in human volunteers following administration of guarana (Paullinia cupana) extract: comparison and interaction with Panax ginseng. Pharmacology Biochemistry and Behavior Volume 79, Issue 3, November 2004, Pages 401-411