So should you put down that energy drink?
New research suggests energy drinks boost blood pressure and may make the heart more susceptible to electrical short circuits or changes in heart rhythm.
But, it's not clear how much it has to do with caffeine.
However, experts in pharmacy practice at the University of Connecticut answer that question saying, not necessarily.
Still, they say, it's possible that some people looking to stay alert, stay awake or get a jolt
could be especially vulnerable to the effects of energy drinks.