Trainer: This One-Dumbbell Workout Will Build Huge Arms in 20 Minutes originally appeared on Men's Fitness. There are usually three reasons why people skip workouts: Either they’re new to training and ...

The fastest way to build bigger arms at home or in the gym isn’t to simply grab a set of adjustable dumbbells and crank out as many biceps curls as you can. To increase the size and strength of your ...