When inverted, the natural pull of gravity allows a separation of your vertebrae, which lessens the pressure on the discs in between each vertebrae. The action of increasing the space margins between the vertebrae can actually create a mild suction in the disc, which may help encourage the bulged disc return to its proper place.
The main benefits are realized by increased circulation and waste elimination to injured discs. In the opinion of many medical professionals, several sessions of intermittent traction are the best way to help the body dissolve a bulged disc.
The length of healing time will vary with different people. However, it has been our experience that you should hang three or more times every day for short sessions at an angle most comfortable for you. Do not over-do it-this is not a "no pain, no gain situation."