I had a herniated disc, L4/5 & used an inversion table. It made a big difference, for me. I believe you have to be very conscientious about using it. If you have high blood pressure or eye issues it may not be for you. Talk to your doctor. I inverted pretty much all the way over, but if my pain was bad I would only invert maybe 45 degrees. I still have my inversion table and use it occasionally. My herniated disc is healed - no surgery.