| Research Studies » Chronic Migraine |
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| Practical clinical criteria define Chronic Migraine as headache that occurs 15 or more days a month with headache lasting 4 hours or longer for at least 3 consecutive months in people with current or prior diagnosis of migraine.1 By this definition, people with Chronic Migraine are spending half their month living with debilitating headaches. Source: http://www.mychronicmigraine.com/about-chronic-migraine/?cid=sem_mcm_goo_s_1_3126 |
