Caffeine is consumed by over 80% of US adults. This review examines the effects caffeine
has on cognitive and physical function, since most real-world activities require complex …

Rationale Despite the large number of studies on the behavioural effects of caffeine, an
unequivocal conclusion had not been reached. In this review, we seek to disentangle a …

Energy drinks containing caffeine, taurine, and glucose may improve mood and cognitive
performance. However, there are no studies assessing the individual and interactive effects …

Background Theobromine, a methylxanthine related to caffeine and present in high levels in
cocoa, may contribute to the appeal of chocolate. However, current evidence for this is …

Abstract The US Department of Defense, including the Army, Air Force, Navy, and Defense
Advanced Research Projects Agency (DARPA) has engaged in cognitive enhancement …

The purpose of this study was to identify the mechanisms underlying effects of coffee on
cognition in the context of brain networks. Here we investigated functional connectivity …

In this study, the sublethal effects of caffeine, sulfamethoxazole and their mixture on goldfish
(Carassius auratus) were investigated, the biomarkers including acetylcholinesterase …

Tea has historically been associated with mood and performance benefits, such as
relaxation and concentration. This review summarizes the research on the acute effects of …

Intake of dietary supplements has increased, despite evidence that some of these have
adverse side effects and uncertainty about their effectiveness. This systematic review …

What effects do factors that impair or enhance performance in individuals have when these
individuals act in groups? We provide a framework, called the GIE (" Effects of G rouping on I …