Jaime Ruiz-Tovar, MD, PhD, is a general and digestive surgeon at University Hospital Rey Juan Carlos (Madrid, Spain), specializing in bariatric surgery. He is a professor of surgery at Universidad Rey Juan Carlos, secretary of the surgical infections section of the Spanish Surgical Society, and head of the bariatric surgery section of the ERAS-Spain group (Enhanced Recovery After Surgery). He leads several investigational projects focused on bariatric surgery and surgical infections. Dr. Ruiz-Tovar has extensive experience in obesity surgery and nutrition, and he developed the technique of neurostimulation of abdomen dermatomes for appetite control. This procedure involves stimulating the stomach with a minimal voltage electrical current through a fine needle inserted subcutaneously into the abdomen's skin, which is painless. Through 30-minute weekly stimulations over 10 weeks, average weight losses of around 10 kg are achieved, reducing appetite in 95% of cases and supporting compliance with a low-calorie diet in over 90% of patients.