I have herniated disks in my lower back for 7 years now and am willing to try anything. Yoga helps a little but it cramps up when I'm sitting at my desk for 8 hours. I heard in Europe there is a back brace that helps with back pain that supposedly a couple of million people are using. It's called Kosmodisk. Has anyone used this product that can give me advice? They now sell it in America. I found it browsing on Amazon.