Traction can relieve some of the symptoms of disc injuries. However, traction does not address the source of the problem. Traction and inversion tables lower the intradiscal pressure from a +90 mmHg to a +30 mmHg (positive pressure). Spinal decompression creates a vacuum phenomenon inside the disc. This effect causes the disc to pull back the herniation to center. In addition, the increase in negative pressure causes the flow of blood and nutrients back into the disc, allowing the body’s natural fibroblastic response to heal the disc injury and rehydrate the disc. Spinal decompression is clinically proven to reduce the intradiscal pressure to between -150 to -200 mmHg (negative pressure) – and that’s a very good thing.