Hi , Ive heard a lot about these Q link necklaces and bracelets you can wear which helps with depression, energy levels, irritability, physical performance, and countless other things. Even Tony Robins and Kevin Trudeau endorse the product. It has a 90 day money back guarantee. Im no scientist but does anyone know if these are effective? Heaven knows I spend a lot of time in front of the computer and on cells phones, ect.. Thx for any tips or opinions! Diane