>>11394691The primary contraindication is atherosclerosis, general old age and poor vascular health. Essentially I imagine what it does is pull the vertebrae apart, which sucks in new fluid and pushes out waste, it tears any tethering or fibrous adhesions, and it pulls the muscles surrounding the spine out of spasm. If you've ever tried cervical traction, it's like that, but for the whole spine, atlas all the way down to the SI joints.
Would I do it? Eh. Maybe. When my spine was worse off if offered I would've taken it. That's primarily because I'm zero-risk and am subconsciously wired to assume anyone acting upon me will be towards harm of some kind. In realistic, absolute logical terms, you're near certainly fine. Vertebral dissection is rare unless your blood vessels are brittle and trashed, full of plaque, etc.
