The literature suggests that the following effects on behavior of adult humans may occur
when individuals consume moderate amounts of caffeine.(1) Caffeine increases alertness …

Rationale Although reports of caffeine withdrawal in the medical literature date back more
than 170 years, the most rigorous experimental investigations of the phenomenon have …

Rationale The cognitive and mood effects of caffeine are well documented. However, the
majority of studies in this area involve caffeine-deprived, habitual caffeine users. It is …

Based on review and critical analysis of the literature regarding the contents and
physiological effects of coffee related to physical and cognitive performance conducted by …

The ergogenic effects of caffeine on athletic performance have been shown in many studies,
and its broad range of metabolic, hormonal, and physiologic effects has been recorded, as …

This paper presents the first comprehensive review on vigilance enhancement using both
conventional and unconventional means, and further discusses the resulting contradictory …

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

Rationale Both glucose and caffeine can improve aspects of cognitive performance and, in
the case of caffeine, mood. There are few studies investigating the effects of the two …

Caffeine is a commonly used neurostimulant that also produces cerebral vasoconstriction by
antagonizing adenosine receptors. Chronic caffeine use results in an adaptation of the …

The objective of this study was to determine the effect of caffeine level in tea and coffee on
acute physiological responses and mood. Randomised full crossover design in subjects …