Influence of genetics on consumption and response to caffeine
Article: http://eds.b.ebscohost.com/eds/pdfviewer/pdfviewer?sid=7e2721db-52c1-4752-84ca-fffe1b6a8e6d%40sessionmgr120&vid=9&hid=112 Caffeine is the highest consumed psychoactive substance with 90% consumption in U.S. adults. It is globally popular due to it's ability to create alertness, enhance mood and stimulate the brain. It is also used clinically to treat problems like sleep apnea. According to this article, there are negative effects of caffeine such as excessive urination, bronchodilatation (decreasing resistance in the respiratory airway) and high systonic blood pressure. Low doses of caffeine induce mind euphoria, alertness and enhanced cognition. But high doses produce nausea, anxiety, trembling and jitteriness. Tolerance develops so quickly that the effects of caffeine in habitual consumers are different from occasional caffeine drinkers. One can develop physical dependence and strong withdrawal symptoms. Last year I worked in a coffee shop that gave me fre