Im in perfect health for a 46 yr old, VERY strong muscularily, and no sign of osteoporosis or degenerative disease. Mine is strictly due to injury.. compression from lifting and twisting with extremely heavy weight (repeatedly) from your waist up. I KNOW the proper technique of lifting with your legs instead of your back which i do properly. He said he knows, thats why this injury happened in my thoracic instead of my lumbar. I got mad at him,.." but my muscles are strong, I take supplements, and I am fit!!!" . He said basically, under extreme vertical pressure, your muscles are willing to take on more than your spine can handle. ..........I saw my mri discs after i brought them home... i can barely see that one...the t-11. I have been wearing a metal bral 24-7 as ordered by him 5 weeks ago. He said back when i saw him that i qualify for ALL forms of thoracic surgury. I have no health insurance, people. Applied for financial aid DIRECTLY through the hospital, got approved the other day %100 coverage.