According to The Register, an Australian study says those drinking vodka and Red Bull (really alcohol and energy drinks) are less likely to involve themselves in risky behavior than those drinking other alcoholic beverages. Unless, of course, you believe a study done by University at Buffalo’s Research Institute that says vodka and Red Bull (really alcohol and energy drinks) makes you more likely to have casual sex because it can lead to a more-think-than-you-drunk-you-are situation. Notwithstanding, the simple act of drinking vodka and Red Bull (really alcohol and energy drinks) might be risky on its own. According to Medical Daily, a study in Alcoholism: Clinical & Experimental Research says consuming such beverages makes you 600% more likely to have heart palpitations.