9 Things You Should Never Do On Biceps Day

It's hard to mess up biceps curls—but we found a bunch of ways people do just that.The recipe for big arms is simple: curls, curls, curls. So basic, in fact, that it seems impossible to screw up. Yet people do.If bodybuilding were truly that easy, everyone would have big guns (and I probably wouldn't have a job). Still, the legions of trainees out there find ways to mess things up in the gym, which, thankfully, keeps me employed. I wish I could send a "thank you" card to all of them!Seriou