Preventing rounded shoulders helps improve your posture, and better posture means fewer aches and pains. Proper stretching coupled with regular care = improved spine health! 6 Stretches to Prevent Rounded Shoulders.
Stretches for tight hips (hip flexers, t-band, sciatica) tight hips can be the reason for a lower belly "pooch" so do them! (my hips are ridiculously tight from being on my feet for so long at work. I didn't know that it could add to belly pooch too)