The belt is great for people with degenerative, herniated or bulging discs. Decompression therapy helps reduce the pressure on the spinal discs and helps relieve the weight of the upper body off the lower back. By relieving the pressure off the spinal discs, the discs can get the oxygen, nutrients, and water it needs to be strong and healthy. Traction can also help relieve pressure and constriction off nearby nerves such as the sciatic nerve.