This is a pretty complex area of science, but in very basic terms quantum physics is about the behaviour of matter and energy of the very small, so atoms and subatomic particles and waves. Quantum physics recognises that everything around us emits a frequency, which can be measured. It also recognises a phenomenon called entangled states. Watch the video below on entangled states. 

Bioresonance testing uses the information from a living organism, which gives out energy, in this case a sample of hair. The energy, or frequencies, in the hair are tested. These frequencies are compared to the frequencies of all the items tested for; food items, non-food items, vitamins, minerals, metals, enzymes and bacteria, in order to establish their levels in the body and their level of sensitivity.

The hair sample provided for the testing can be thought of as a fingerprint of a person. When this is combined with the personal information from the submission form, it provides all the information required to conduct the test itself.