 Well, they're doing that to find out if there's stuff going on before you're feeling it or experiencing any kind of disease or something like that. So as a result, they can get ahead of it. Well, it's really no different with your spine. You may have a lot of spinal problems and have no pain whatsoever. So it is important to think outside the box in pain and think more of when we look inside our body, we're looking to see where we're headed, where we've been, not how we're feeling.