Lying down or tilted chest fly exercises, like incline dumbbell flys, really fire up your front shoulder muscles more than other moves — so they might be your best bet if you're trying to build stronger front shoulders.

If you're a guy who lifts weights, doing lateral raises gives your rear shoulder muscle the biggest workout compared to shoulder presses, bench presses, or dumbbell flies when using the same level of effort.

If you're a guy who lifts weights and want to work your rear shoulder muscles, doing lateral raises is way better than bench presses, flys, or shoulder presses — it fires up that muscle the most.

Lifting your arms out to the side or slightly backward, especially with your palms turned down, works your side shoulder muscles the most — this move might be the best way to build stronger shoulders.

If you're a guy who lifts weights, doing shoulder presses works your front shoulder muscles way more than bench presses, flys, or lateral raises. It's one of the best moves to really fire up those front shoulders.

If you're a guy who lifts weights, doing bench presses or dumbbell flys probably won't do much to work your side and back shoulder muscles — they barely turn on during these moves, even though lots of people do them for upper body strength.