I was looking online for some running shoes and came across weight lifting shoes and wanted to know what the difference was between the two. I run and weight and know that running shoes can better your performance by a ton when you run long distances but do weight lifting shoes do the same when lifting? If so how? Thanks to all who answered.

I have this friend at the gym and he says that the dumbbell incline press fills up your chest and the barbell incline press widens your chest. I'd just like to know why some people use dumbbells instead of the barbell.

Does it work different muscles more when you have your palms facing forward vs facing each other when doing flat dumbbell chest press or dumbbell shoulder press? Or is it pretty much work all the muscles the same just easier on the wrists for some people?

Does the dumbbell flat fly get your chest to be thicker or just wider? (2 questions). I will choose best answer.

I have this friend at the gym and he says that the dumbbell incline press fills up your chest and the barbell incline press widens your chest. I'd just like to know why some people use dumbbells instead of the barbell.