The Dangers of Energy Drinks

In addition, studies show that consumption of energy drinks is associated with an increase in risky behaviors, such as binge drinking, which can lead to hospitalization and even death, especially when high levels of caffeine are consumed with alcohol.

Because energy drink cocktails include both a stimulant (caffeine) and a depressant (alcohol), the concoction hits the heart hard, as the muscle struggles to regulate the chemicals' effects. Statistics from the Substance Abuse and Mental Health Services Administration indicate there were more than 20,000 emergency room visits in 2011 related to energy drink consumption. In some of these cases, patients were admitted for caffeine toxicity, which can result in cardiac arrhythmia and even death.

Sugar is the second-most harmful substance you'll find in energy drinks. Manufacturers tend to load these beverages with the sweet stuff. Studies have shown that intake of intensely sweet drinks lights up the dopamine centers of the brain in some individuals the same way cocaine does—and in sensitive people may even surpass the cocaine reward. Excess sugar consumption over time can lead to chronic and potentially deadly conditions including obesity and diabetes.

While imbibing the occasional energy drink without alcohol is not likely to harm an otherwise healthy person, making a regular habit of it can be dangerous.