Lower Back Pain
One way to alleviate lower back pain is to arch the body, as people and animals do when they stretch to relax. Lying backwards so that the front of the body is stretched will further relax the spine, with the additional benefit of freeing discs and vertebrae from the normal downward pull of gravity. As the body stretches backwards, abdominal muscles tighten and strengthen, and therefore help to take more of the load off the lower back.BodyBridge
The arched position places beneficial pressure on the lower back that tends to separate the vertebrae, freeing up the nerve channels that flow from the spine to help restore the blood supply to connective tissue and the organs. Arching also induces a spreading or "fanning" of the rib cage to produce more vital functioning of these organs.Some studies have even suggested that this effect can reduce stress on the lower back by 50%. In the process it provides mild, passive exercise of the ligaments, tendons and musculature that surround the abdominal cavity. As a result it permits a better supply of blood to flow to all parts of the body, by utilizing the pull of gravity in different directions from those we experience in a normal upright position.