I have a dog that had a torn ACL, and another dog with an old injury that resurfaces occasionally. I bought this CD from Dr Fisher and played it twice a day while I sat with the dogs until they got better as part of their therapy(among other things). They are better now, but we still play the CD every morning and I sit with them, at least for the first song. They get so excited when I walk over to the CD player! I will also play it if they get really anxious, like in a storm.