Examination of Study Physiological Variables among Energy Drinkers in Iraq

The literature suggests that the effects of caffeine on cognitive function (such as alertness, vigilance, memory, and mood) vary depending on the type of Energy drink consumed. Alcohol and tobacco use are two examples of uncontrolled confounders that may contribute to discrepancies in study outcomes. Other potential causes include variations in research methods, participant characteristics, study timing, and other contextual factors. Caffeine has been shown to boost performance on both complex and basic tasks by increasing alertness and decreasing weariness, according to a few studies. Research suggests that anxiety may be exacerbated by caffeine in very large doses, but that this effect is negligible at typical coffee intake levels. Adults with pre-existing anxiety disorders may find that caffeine makes their symptoms worse. There is evidence that quitting caffeine can have harmful consequences, although the research is mixed. Caffeine has been shown to improve wakefulness, which is especially helpful for night workers and those suffering from sleep loss.