21-Day Shred: Back and Biceps Workout

Deadlifts are one of our favorite exercises to raise testosterone, jack up your metabolism, and add slabs of muscle all over your body. Deadlifts are the centerpiece of this routine, and just when they've worn you out, the work really begins. You'll pair this plan with a biceps routine that provides good variety and intensity while avoiding the common pitfall of overtraining these vulnerable muscles.