Inversion machines have been around for a long time. In theory they are supposed to take pressure of the vertebral discs allowing them to re-hydrate and help your back feel better. Inversion machines are not good for you for one basic reason.
1. In the upside down position they increase pressure on the retina leading to potential retinal detachment. Retinal detachment can lead to permanent blindness.
Inversion benefits do not outweigh the risks and can be accomplished with simpler methods. You can achieve the same benefits to your spine by lying flat on your back for 15 minutes with a pillow under your bent knees. This will allow water to travel back into the spinal discs and increase the space between the spinal joints without causing undo pressure on your retina.
If you have further questions or you would like to join our support group please feel free to email me at firstname.lastname@example.org.