Deep transcranial magnetic stimulation (TMS) is currently being evaluated as a treatment option in major depression. It has been shown to be a safe procedure . Deep transcranial magnetic stimulation coils are designed to maximize the electrical field deep in the brain by the summation of separate fields projected into the skull from several points around its periphery. The device is planned to minimize the accumulation of electrical charge on the surface of the brain. Such accumulation can give rise to an electrostatic field that might reduce the magnitude of the induced electric field both at the surface and inside, thus reducing the depth penetration of the induced electric field . Deep transcranial magnetic stimulation could be more effective than repetitive transcranial magnetic stimulation due to its deeper penetration into brain tissues . The deeper penetration should produce greater action on nerve fibers connecting the prefrontal cortex to the limbic system.