New research has found that magnetic brain stimulation could help certain patients control severe symptoms of bulimia.

University of Toronto researchers studied 20 patients with bulimia, using magnetic pulses to stimulate specific areas of the brain linked to self-control, emotions and behavior. The non-invasive magnetic stimulation raised hope for a way to battle bulimia, as prescriptions medications and behavioral therapy do not work for everyone.

One-third of the patients showed a substantial improvement in their binning and purging behaviors, some by 100 percent. Nearly half showed at least 50 percent improvement.

The researchers said they would further investigate why some patients responded so well and others don't.

About 8 million Americans suffer from chronic eating disorders such as bulimia or anorexia.

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