If you're tight on time either around the holidays or into the new year (when your schedule goes back to normal), you might be wondering how you can still build muscle and hit your fitness goals. Fortunately, this 20-minute muscle-building, heart rate-raising dumbbell-only workout can help.
All you need is a set of weights to get started. I generally recommend a pair of the best adjustable dumbbells for home workouts. It's what I use to train, since they combine several weights to take up less space, and you can quickly change the load between moves or gradually as you get stronger.
