The spine is made up of stacked bones called the vertebrae. They are arranged in three natural curves that are necessary to keep your body supported. In a healthy spine the three curves are:
* cervical, the curve inwards at your neck,
* thoracic, the curve outwards in the middle, and
* lumbar, the curve in the low back.

Strong, flexible muscles and ligaments help maintain these curves. In between each of the bones of the spine are cushions called discs that act as shock absorbers. The nerves exit between the vertebrae and branch out to your body. It is likely that as we age, built up stress and pressures begin to wear out the parts of our spine.

Lumbar stenosis is a narrowing of the space the spinal cord and nerves run through, in the lower part of the spine. The space is surrounded by bone of the lumbar spine. The narrowing can be present at birth and worsen as we age. More often, it can be caused by degenerative arthritis. When the space that the nerves travel out of gets too narrow, the nerves can be pinched between the bones. This will lead to pain, weakness and loss of sensation to our back, buttocks or legs.

It is important to know the cause of any back pain. Your healthcare provider will help you determine what is wrong and assist you in your recovery.

Prevention is key to spinal health. Exercise, good body mechanics, and good posture all postpone arthritis. Protect your back by staying active. Learn correct lifting techniques, and be aware of maintaining good posture in all that you do.

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