This is the exercise that makes your shoulders wide.

Your side delt is the muscle that sits on the outside of your shoulder, and it's the single biggest factor in how broad you look from the front. Pressing movements — bench, overhead press — mostly hit the front delt. The side delt barely gets touched. If you only press, your shoulders get strong and stay narrow.

And here's why it matters beyond the mirror: wide shoulders make your waist look smaller. Same waist, better shape. There's no o

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