Ah Jeeze. I just found this online....
I think I'm off red bull for life now. I have high blood pressure anyway....
"...researchers are finding that drinking energy drinks such as Red Bull may increase the risk of stroke and heart attack, even in young adults. Studies have shown that healthy blood vessels can show some signs of damage after drinking just one can. It’s for this reason that Red Bull is banned in France, Norway, Denmark, and Uruguay with other countries currently performing studies of their own."