Over time, some spinal joints will lose normal motion due to seemingly insignificant injuries such as ligament sprains, muscle strains, bad posture, muscle spasm, and other normal issues that arise with daily life. The problem is that although the pain may lessen or even completely disappear, loss of proper joint mobility means less blood flow to the joint as well as decreased spinal fluid flow to the disc.
The result is what you see in the disc problem graphic to the left. A very good comparison example is regular dental care. Before people became aware of the need for proper dental hygiene and regular dental checkups, dentures, missing teeth, and toothaches were a part of life. Regular chiropractic care ensures proper joint mobility by maintaining a healthy joint with optimum blood and spinal fluid flow providing necessary nutrients to keep each vertebral joint healthy.
In my practice, I not only address joint dysfunction but also the soft tissue scar formation (as discussed to the right) that can cause the spinal joint to be unilateraly pulled to one side of the body causing joint stress leading to spinal arthritis.