6. Dumbbell Shrugs: How to Do: Grasp a dumbbell in both hands, extend your arms at your sides and face your palms to your body. Raise your shoulders up as high as you can — imagine bringing your shoulders as close as you can up to your ears. Pause one second and slowly lower your shoulder down to the starting point. Do this eight to 12 times and complete three sets. 7. Inverted Rows: How to Do: Get under a barbell that is resting on a weight stand. Place your hands a little wider than should...