I bought this originally for my little dog to try and relieve back pain. I noticed the first use it eased his discomfort. He was lighter moving and we use multiple times a week for half hour on the 850. I’ve started using it the same way on my Carpal tunnel and found relief too. I can go two days after using it and not feel pain on my hand. It Really must help the body heal. I highly recommend to try it. I’ve been very satisfied and a good price for home care too.