by Anna Maltby
Cathy Crawford You know that crazy buzz you get after downing an energy drink if you've ever tried one? Well, it turns out that your heart might feel that extra boost, too. In a study being presented today at the annual meeting of the Radiological Society of North America, researchers from the University of Bonn in Germany used a cardiac MRI to measure the heart function of 18 healthy young volunteers, both just before and one hour after they each consumed an energy drink. The researchers found significantly increased heart contraction rates -- meaning, can speed up your heart rate -- one hour after the volunteers guzzled up the drinks.
See more: 6 Moves To Resize Your Butt and ThighsWhile that may sound like cause for alarm, lead researcher Jonas Dorner, M.D., told SELF that more research is actually needed before scientists can definitively say energy drinks are harmful for your heart. After all, one hour isn't a very long time, and a higher heart contraction rate isn't always a bad thing.
However, as SELF has reported before, energy drinks may cause heart palpitations when combined with alcohol or exercise, and they may even cause permanent damage to your teeth! Tea or coffee -- or, you know, getting enough sleep -- may provide a safer energy boost than guzzling down a sugary energy drink.
See more: 5 Simple Steps to Cellulite-Free Skin"Energy drinks contain high amounts of caffeine, taurine and other supplements. In addition, they are often consumed in high [volume] and in short time. Therefore, the intake of such ingredients due to energy drink consumption are more likely to cause an overdose [of the aforementioned ingredients]," Dr. Dorner told SELF. "Additionally, research suggest that some supplements may compound the stimulant effects of caffeine. That's why, in general, the intake of caffeine should be reasonable," he adds. Stick to your morning cup o' joe and you'll be good to go.
Have you ever chugged an energy drink? How did it make you feel? Share your thoughts below or tweet us @amalt and @SELFmagazine!