There’s a famous saying, attributed to Joseph Pilates: “You’re only as young as your spine is flexible. ” And it’s true. Just ask anyone who’s ever had a bad back. We don’t often see our backs, unless we contort ourselves in front of the mirror, but it’s there…and running along the length of it is that magical spine of yours. One of the most complex pieces of kit in your anatomy, it’s something many people take for granted, at least, until it’s too late or you feel a twinge of pain (or worse!).