Almost everyone will experience low back pain at some point in their lives, and a common cause is spinal stenosis. Stenosis occurs when the space around the spinal cord narrows, putting pressure on nerve roots. Lumbar spinal stenosis -- stenosis of the lower back -- is often a normal part of aging since soft tissues and bones harden as we age.
According to the Mayo Clinic, about four out of five people in the United States will experience low back pain at least once during their lives. Back pain is the second most common cause of missed work days. It costs us about $90 billion each year.