In swim “speak,” body roll is the rotation around your long axis. Huh? Yup, what she says. Translated into regular English, body roll is the rotation of your shoulders, torso and hips. The terms “body roll” and “rotation” mean the same thing. Well, why didn’t you say so? I think I ate too many donuts………my brain is foggy. To swim efficiently, the shoulders, torso and hips should roll together as one.  You also will kick slightly on your side as you rotate.  In freestyle, it is quite rare to see someone with too much body roll, but it is very common to see people swimming flat. Here is a (big) tip: Your head remains stationary and does not roll side-to-side with your body unless…