The effects of chronic trans-resveratrol supplementation on aspects of cognitive function, mood, sleep, health and cerebral blood flow in healthy, young humans

Wightman EL, Haskell-Ramsay CF, Reay JL, Williamson G, Dew T, Zhang W, Kennedy DO (2015) The effects of chronic trans-resveratrol supplementation on aspects of cognitive function, mood, sleep, health and cerebral blood flow in healthy, young humans. Br J Nutr., 114(9):1427-37

The effects of supplementation with a vitamin and mineral complex with guarana prior to fasted exercise on affect, exertion, cognitive performance, and substrate metabolism
A double-blind, placebo-controlled study evaluating the effects of caffeine and L-theanine both alone and in combination on cerebral blood flow, cognition and mood