Transcranial Magnetic Stimulation therapy (TMS) has been licensed for the treatment of severe depression in the U.S. The therapy does not involve drugs or invasive procedures and works by stimulating nerve cells in an area of the brain that is linked to depression by delivering highly-focused magnetic pulses. The treatment takes around 40 minutes and does not require anaesthesia or sedation. Over 10,000 treatments performed so far have produced only minor side effects of mild-to-moderate scalp pain.
You can find out more about Transcranial Magnetic Stimulation therapy at