Overuse of energy drinks worries health pros

People who consume too many energy drinks could suffer from dehydration, tremors, heat stroke and heart attacks, the experts warned. Instead, they say, teen and adolescent athletes should drink water while training and playing — especially during hot and humid summer months.

"There's a tremendous amount of caffeine in these drinks," Jeanna Marraffa, a clinical toxicologist at the Upstate New York Poison Center told USA TODAY during the conference on Tuesday. "I would say: know what's in these products, have a sense of how much you're consuming and realize they are not safe. Certainly you can have toxic effects from them."