Honestly, I think most people would do better by spending a little time in the gym doing some core exercises. Abs, and lumbar specifically. Tighter and stronger muscles will relieve a lot of back pain. IMHO, far better than some non-doctor spine alignment genie.
I had back problems for years after a car accident. Spasms that would drop me in my tracks and things like that. After getting back to the gym and getting back in shape, no more problems what-so-ever.
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