Check out this 25-minute cardio kickboxing workout from Grokker. This work out will strengthen your entire body and boost your metabolism while simultaneously providing the perfect outlet for any frustration or anxiety. Follow trainer Le Jon Guillory through a series of beginner kickboxing moves, he will take you through jabs, crosses, uppercuts, hooks and front…

This all-new back and biceps exercise comes from the mind of Men’s Health Fitness Director B.J. Gaddour. It’s shockingly simple but it’s genius in that it increases the amount of time your back muscles are under tension, and provides a new curling angle for your biceps. Watch the demonstration and then add it to your…