Cure-Alls Rarely Are
People will believe almost anything
It seems that the more bells and whistles an object has, the more it looks like the real thing. This is especially true in the wonderful world of medical quackery.
Consider Dinshah P. Ghadiali, who first presented the Science of Spectro-Chrome Metry to the world on April 26, 1920.
His "science" was based on the idea that intense beams of colored light could cure any disease. Fortunately, prosecutors caught up with him. But he still he made a million dollars by 1940 selling his machines.
So be careful of those flashing lights and inflated claims. Those medical quacks are still around.