Often enough, someone being described as “fit” has a lot more to do with their physical appearance rather than their physiology. If you were to ask a distance runner, however, they may describe being “fit” more along the lines of one’s physical ability. A gymnast or yoga enthusiast may be akin to relating flexibility and range of motion to one’s fitness level. To my mother, being able to perform daily tasks without shoulder, hip, or knee pain would make for an “in-shape” pers