A new study suggests that some patients who don't tolerate antidepressant medications could benefit from a non-invasive treatment that stimulates the brain with an electromagnet. The therapy accounted for the remissions in 14 percent of the antidepressant-resistant patients who were treated. "The treatment aims to jump-start underactive mood-regulating circuitry by targeting the top left front part of the brain with an electromagnetic coil that emits 3,000 pulses over a 37-minute session."