Our bodies are optimally functional when to posture is correct – slightly sway back, curvature in the neck, head sits directly over the shoulders (not forward as we can see everywhere around us). Shoulders should be aligned over the hips that are directly above the knees that are directly above the ankles. This is the ideal that we always want to strive for, or the joints will experience additional and unnecessary stress during the sporting activities. Unfortunately, we spend most of our lives sitting – studying, working at the computer, writing, reading books, watching TV, or playing computer/TV games. Often we slouch a bit, shoulders and head leaning forward, upper and lower back rounded. Imagine what it does to our spine if we spend up to 8 hours a day like this.