I thought that was bunk and I laughed when my husband bought, especially since I'm the one that has had chronic back and neck pain for the last 3 years - 2 of the years of consistent chiropractic work at least 3 times a week. We recently moved and things improved drastically with only the occasional neck pain, I'm assuming from less stress, then this morning I woke up with a killer headache and could barely move my head from the stiffness and pain in my neck. I took my husbands necklace and laid in bed, after dozing off for an hour I woke up and things were 90% better. I then cracked my neck and we were at 98% I took the necklace off long enough to take a shower and by the time I got out my neck was locking up again so I put it on for the remainder of the day until my husband got home. I'm ordering mine asap, it was enough to convince me - although I *hate* the look, clashes with all my clothing except my running stuff. Based on another persons review, I am eager to try it on my ankle, I too have a bad ankle from a severe sprain a few years ago - I bet this will help for sure! This product rocks.