I spent 3 hours on a 12 foot gas powered pole saw yesterday evening. when I got up this morning my back was feeling my birthdays and that pole saw. I put my actipatch on and went to work, by 1100 oclock this morning there was no pain in my lower back. I believe for a person to realize the value in the actipatch it has to work for them. when it takes your pain away that's when you realize how the actipatch is going to change the lives of so many people around the world, that's right folks the WORLD!!!!!!!!! so much value here, go biel!!!!!!!!!!!!!!!!