Some people don't believe in negative ions, did say that it is due to the psychological effect that after wearing they don't feel the pain. Well I do not know about if is due to psychological effect. However, I personally think and feel, even if it is so, fine. I am not feeling the pain and my quality of life has improved. Which if I take medicine my conditions don't seems to have significant improvement and tends to relapse and needs longer medication. Which is better? Hahaha the choice is yours! I am not asking you to belief what I said, because what I experienced may not be what you will be experiencing. Try it out yourself to give your own judgement and not denial from the start.