You see, in the nineteen centuries, a device, named, GDV was invented by a professor's research in Russia, Konstantin Korotkov.
This device measures the bio-energy all living organism gives off in a stable and painless state.
Basically, our body reacts to the accepted stimulus is taken and analyzed by using a weak, completely painless electrical current passed to the fingertips within a very short period of time.
The response are made up of light energy photons which are invisible to our eyes. Thus, scientist translates this responses to a digital computer file which we are able to read by using an optical CCD camera.
Lastly, the digital file is converted to a photonic profile which are compared to several databases, ranging in hundreds of thousands which are made for scientific analyses and discussion.