Your spine is made up of 26 bones called vertebrae. In between them are soft disks filled with a jelly-like substance. These disks cushion the vertebrae and keep them in place. As you age, the disks dehydrate and degenerate. As they do, they lose their cushioning ability. This can lead to pain if the back is stressed.
Sometimes one of these discs can rupture, known as a herniation. This allows the jelly-like centre of the disk to ...