Add Yahoo as a preferred source to see more of our stories on Google. The concentration curl can be an essential addition to your training routine to help build big arms and make your biceps pop, but ...

If you stride through the gym straight to the dumbbell rack, grab the first set of weights you see and immediately get to curling, your biceps-building workout is probably too rushed. To really ...

If your arm day consists of bicep curls on bicep curls, it might be time to switch things up and throw some bicep curl variations into the mix. Doing slightly different takes on the staple exercise ...