It does involve a leap of faith but then all of quantum physics relies on that too – after all sub-atomic particles cannot be sensed by the five human senses! The product appeared to work, because Dr Metus’ manual muscle testing showed muscles to be stronger in golf swing positions and gait positions while using the small “devices” than without. This unique product won the 2017 United Inventors Association’s Pinnacle Award during the 2017 Show, implying that it worked for other people too. (neuro-connect.ca)