The US Food and Drug Administration (FDA) has approved a first-of-its-kind weight loss treatment device that electronically suppresses hunger signals traveling between the stomach and the brain (http://1.usa.gov/1yAbICk). The Maestro Rechargeable System, which is manufactured by EnteroMedics of St Paul, Minnesota, consists of an electrical pulse generator, wire leads, and electrodes that are implanted into the abdomen and intermittently send electrical pulses to the vagus nerve.