Red Bull may hike heart attack risk

"While the makers of Red Bull claim their ragingly popular beverage 'gives you wings,' a new study suggests that the taurine- and caffeine-based energy-enhancer may also give you a higher risk of having a stroke or heart attack. Drinking one 250 ml can of sugar-free Red Bull increased the 'stickiness' of a drinker's blood, causing a higher risk of blood clots, which can be a precursor to life-threatening strokes, according to a study released last month by the Cardiovascular Research Centre at the Royal Adelaide Hospital in Australia" - Harvard Crimson