How does the scanner work?

Bioelectrical Impedance Analysis or Bioimpedance Analysis (BIA) works by passing a safe, low intensity electrical current through the body via the tactile points on the machine (feet and hands). The response of biological tissues to an alternating electrical signal applied produces a bioelectrical impedance which is a function of tissue composition as well as the frequency of the applied electrical signal. Impedance varies with tissue structure, tissue composition, tissue health, and signal frequency. The resistance to flow of the alternating current determines the difference between muscle mass, fat mass (including visceral and subcutaneous), water and minerals.