The spine, also known as the vertebral column, is a marvelous structure.
It consists of a series of bones called vertebrae, which are stacked on top of one another and cushioned by discs. These discs, known as intervertebral discs, are a testament to the resilience of our bodies, serving several important functions.
Intervertebral discs are a type of cartilage composed of two main parts.
- The outer layer, the annulus fibrosus, is a tough, fibrous ring that provides structure and stability.
- The inner gel-like core, the nucleus pulposus, is a shock absorber.
The discs in our spine are crucial as they enable us to move with ease—like bending, twisting, and lifting. They also act as cushions, absorbing the shock from everyday activities, creating space for nerves to exit out of the spine, and preventing the bones in our back from rubbing against each other.
Although our discs are designed to last a lifetime, they can often become injured and wear down. This typically occurs when our bodies cannot properly adapt to stress, resulting in what is known as a Neuro-Structural shift (or NS shift). This shift leads to joint problems such as osteoarthritis and spondylosis, which involve the deterioration of discs and bones. When the spine’s alignment is affected, it alters how weight is distributed across our joints, placing extra pressure on our soft tissues and bones. This imbalance can trigger a cycle of wear and tear.
An NS shift impacts a joint in two significant ways: it may impose excessive strain on the joint or, conversely, relieve it of essential pressure. Both of these scenarios trigger compensations in the bone structure and surrounding tissues. When our joints fail to move in their normal range of motion, it diminishes blood flow and disrupts the delivery of vital nutrients. This deficiency adversely affects ligaments, cartilage—such as the intervertebral discs—and other connective tissues that lack a direct blood supply, leading to long-term damage and impaired joint function such as bulging discs, herniated discs, thinning discs, and degenerative disc disease.
