Though one can try, one cannot separate mind from body. When body is in pain, mind wanders and mind tries to look at body to see what has caused it pain. When that pain is from physical activity, one goes into retrospective of one's life choices and lifestyle. Physique is a two-fold question, one from beauty and one from health. When there's pain involved, health becomes more apparent, and it does push one to look at one's own physique with a more critical eye.