We know this exercise since childhood. I remember myself doing it with books – I didn't have dumbbells. Even though this workout seems to be too simple, it gives amazing results. You can perform the standing alternating dumbbell press at home, in the office, or when running in the park. All you need is your favorite dumbbells and a fantastic mood. Lift your arms, with your elbows bent at a 90 degree angle. Straighten your elbows and lift your arms overhead. Lower and repeat. That’s it.