For a back pain sufferer, the comment about your body becoming stronger after walking 4-5 miles is a really encouraging one. And frankly, even if the system do

For a back pain sufferer, the comment about your body becoming stronger after walking 4-5 miles is a really encouraging one. And frankly, even if the system doesn't work for everyone, the way you have deconstructed it into 45 degree angles is something I have never come across before, so kudos to you for figuring this out. I have the same question as the sibling. Where did you read about this stuff?