A report issued by the Substance Abuse and Mental Health Services Administration reported that non-alcoholic energy drinks resulted in 13,114 emergency room visits in 2009. Men aged 18 to 39 made up the majority of visits and 44% of emergency room visits were the results of combining energy drinks with alcohol or drugs. Sales of energy drinks have skyrocketed, growing 559% in the last decade. This equates with the increase in emergency room visits linked to energy drink consumption
Bottom line: Drinking high caffeine energy drinks can carry risks.