A new therapeutic approach in the treatment of visceral and sub-cutaneous fat. Based on the use of low-frequency alternative magnetic fields, BioStimology allows a significant improvement on determining factors of the metabolic syndrome and the reduction of the waistline for obese and overweight people. Facing an alarming increase in this worldwide phenomenon, it seems particularly interesting to present a non-invasive and non-aggressive breakthrough in lipolysis, which enables to reduce noticeably visceral fat.