It gets the Blood going, but don't take too much, you could die of heart attack, in recent studies, Energy Drinks are compared to Liquid Cocaine. I was in Alaska, and We were only getting like 4-6 hours of sleep and work for as long as 18+ hours, and sometimes I'd take this energy drink, STRONGEST STUFF EVER, 5 times the Caffeine of Red Bull, 3 Times the Caffeine of a Monster, and that shit messes you up. So Be careful with that stuff homeboy!