Occipital Nerve Stimulation has recently emerged as a novel form of therapy for patients with intractable cluster headaches. Could it be the hallmark of a new era in stimulation therapies for primary headache syndromes? Joining host Dr. Mary Leuchars to share insights on this subject is neurologist Dr. Peter Goadsby, director of UCSF's Headache Center and a world expert on trigeminal autonomic cephalgias, or TACs.