New Report in Journal Headache on Chronic and Episodic Migraine.

This new report in Headache. 2011 Nov 22 looks at differences between Chronic Migraine (More than 15 headache days/month) compared to Episodic Migraine (less than 15 headache days/month) The study found that "those with Chronic Migraine were significantly more likely to experience "severe" headache impact (72.9% vs 42.3%) and had higher odds of greater adverse headache impact compared with