Every gym dude and his brother is flocking to GNC, Bodybuilding.com, even Target and Walmart to buy this stuff like its cocaine. I haven’t ever tried cocaine, but I’d guess some of the effects are similar (increased heart rate, energy, blood flow, etc). I was one of these gym bros. I’ve tried upwards of 20 preworkouts in the past and they’re one of the most effective supplements you can take to hype you up for a bicep-busting, chest-popping workout. I’ve only recently cut them out due to financial reasons. I was taking preworkout before 90% of my workouts and working out 6 days/week – it adds up. Click here for full article.